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<article xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>The Role People Play in Adolescentsʼ Music Information Acquisition</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Audrey Laplante</string-name>
          <email>audrey.laplante@umontreal.ca</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>École de bibliothéconomie et des sciences de sciences de lʼinformation, Université de Montréal C.P. 6128, succ. Centre-ville</institution>
          ,
          <addr-line>Montréal QC</addr-line>
          ,
          <country country="CA">Canada</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>This paper reports on a study on the role people play in music information provision for adolescents. Using a qualitative approach to social network analysis, this study focuses on the ways in which music information is shared across adolescents' networks. Preliminary findings suggest that adolescents primarily discover new music through close friends whose social network is significantly different from theirs (e.g., those who attend a different school). They also indicate that music opinion leaders (i.e., those who are most influential in their social network in terms of music) are perceived as (1) good communicators, who are (2) highly invested in music, and who are (3) willing to share the information with their friends. These findings provide developers with ideas for the improvement of social filtering algorithms used in music recommender systems.</p>
      </abstract>
      <kwd-group>
        <kwd>eol&gt;Social networks</kwd>
        <kwd>music information behavior</kwd>
        <kwd>adolescents</kwd>
        <kwd>music recommender systems</kwd>
        <kwd>user studies</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. INTRODUCTION</title>
      <p>
        For many years, it has been common practice for people, especially
adolescents, to share music. While yesterday’s young adults
exchanged CDs and tapes, or prepared music compilations for one
another, today’s adolescents share music files through peer-to-peer
file sharing systems and push music information to their friends
using instant messaging or social networking sites. If the media
have changed, the motivations remain unchanged: music sharing
strengthens social bonds [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ] and represents one of the most efficient
ways of discovering new music [
        <xref ref-type="bibr" rid="ref2 ref3">2, 3</xref>
        ]. Indeed, acting as filters
between music and their friends, people provide highly
personalized recommendations, specially tailored to their friends’
tastes.
      </p>
      <p>Considering the effectiveness of people as sources of music
recommendations, it comes with no surprise that when developers
tried to automate the process of recommending music, many
decided to use social filtering. As a matter of fact, although a few
successful music recommender systems use content-based filtering
(e.g. Pandora), most systems exploit feedback from other users to</p>
      <p>
        Research has shown that from the user’s perspective, one of the most
important criteria of a good recommender system is its capacity to propose
new, not-yet-experienced items [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ]. In this paper, we present the
preliminary results of a project whose primary objective is to examine who
in an adolescent’s social network is more likely to provide this type of
offer personalized recommendations (e.g. Last.fm). What makes
each of these systems unique is the type of information they use to
generate recommendations: implicit feedback (e.g., listening habits,
purchases) and/or explicit feedback (e.g., user ratings, lists of
favorite artists) [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ].
      </p>
      <p>By providing a rich description of the role people play in music
information acquisition in adolescents’ daily lives, this study
contributes to our understanding of the music information behavior
of young adults and highlights potential avenues for the
development of more efficient collaborative filtering algorithms for
music recommender systems.</p>
    </sec>
    <sec id="sec-2">
      <title>2. RELATED WORK</title>
    </sec>
    <sec id="sec-3">
      <title>2.1 People as Information Providers</title>
      <p>
        Research performed by information scientists has shown that
people (relatives, friends, colleagues, and other acquaintances) play
a primary role in information provision. This phenomenon seems to
be particularly prevalent in everyday life contexts [
        <xref ref-type="bibr" rid="ref6 ref7 ref8">6-8</xref>
        ], for
instance to acquire hobby-, health- or job-related information.
People rely on their social network for information or
recommendations for a variety of reasons. One’s close personal
network is usually considered the most accessible source of
information. Family and close friends are generally close by and
willing to share information, both spontaneously and on demand
[
        <xref ref-type="bibr" rid="ref9">9</xref>
        ]. Additionally, people appreciate the relevance of the
information they acquire this way. By asking people who know
them well and whom they trust and consider to have good
judgment, they obtain information that has been filtered especially
for them [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ]. Information sharing between individuals is also
socially and emotionally motivated: (1) it helps build and maintain
relationships, and (2) sharing information is a gratifying activity
[
        <xref ref-type="bibr" rid="ref11">11</xref>
        ].
      </p>
      <p>
        The few studies that have been conducted on music information
behavior in everyday life revealed that people play perhaps an even
more important role than in other contexts. Studies by Laplante [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ]
and Tepper &amp; Hargittai [
        <xref ref-type="bibr" rid="ref12">12</xref>
        ] showed that one’s social network
represent the most important source of music discovery. Similarly,
Sinha &amp; Swearingen [
        <xref ref-type="bibr" rid="ref13">13</xref>
        ], who compared music recommendations
provided by friends and online systems, found that the former
consistently performed better than the latter from the user’s
perspective.
      </p>
    </sec>
    <sec id="sec-4">
      <title>2.2 Music and Identity</title>
      <p>
        If people rely so extensively on their social network to discover
new music, it might be because of the close link that exists between
music and identity. Research in music sociology and psychology
has long established that music played a significant role in the
formation of one’s identity, particularly in adolescence [
        <xref ref-type="bibr" rid="ref14 ref15">14, 15</xref>
        ].
Young people use music as a social badge which communicates
who they are (or who they wish they were) individually and as a
group [
        <xref ref-type="bibr" rid="ref16">16</xref>
        ]. Indeed, adolescents’ music tastes develop in a highly
social environment: their music preferences are usually similar to
those of their friends or of people they wish to emulate. Thus, it is
common practice for adolescents to scan the music collections of
their most estimated friends to check for new suggestions, as well
as to look at the collections of newcomers or potential love interests
to ensure that they “fit” [
        <xref ref-type="bibr" rid="ref15">15</xref>
        ]. This also explains why sub-cultures,
by which groups of adolescents often define themselves and to
which opinions, attitudes and values are associated, usually form
around music genres [
        <xref ref-type="bibr" rid="ref16">16</xref>
        ].
      </p>
      <p>
        As a matter of fact, adolescents do not only use music tastes to
express who they are but also to judge their peers. Hence, most
consider that there are social repercussions associated with the fact
of exposing their music preferences [
        <xref ref-type="bibr" rid="ref15">15</xref>
        ]. For instance, research
revealed that those who express a preference for music genres that
are considered prestigious by their peers are more likely to be
perceived positively [
        <xref ref-type="bibr" rid="ref14">14</xref>
        ]. In the same way, those who demonstrate
a high level of knowledge of popular music were found to have
more chances of being perceived as popular by their peers [
        <xref ref-type="bibr" rid="ref17">17</xref>
        ]:
music being one of the most important conversation topics among
adolescents, one can assume that good music knowledge facilitates
social interactions with others.
      </p>
      <p>
        Considering that adolescents use music preferences to make
inferences about others, it comes with no surprise that most seek to
“perform” through their music tastes: the values and attitudes
associated with the music genres they publicly admit liking must
correspond to what they want to convey about themselves [
        <xref ref-type="bibr" rid="ref14">14</xref>
        ]. And
the advent of social networking sites such as MySpace or Facebook,
which allow them to list their interests in terms of music, cinema,
television series and books on the social network profile, has
emphasized this phenomenon [
        <xref ref-type="bibr" rid="ref18">18</xref>
        ].
      </p>
    </sec>
    <sec id="sec-5">
      <title>3. METHODOLOGY</title>
      <p>
        Qualitative methodologies have dominated the research on
everyday life information behavior, with interviews, diaries and
observation being the most common data collection methods. These
methods have proven to be effective in providing thick descriptions
of the phenomenon from the user’s perspective and in capturing the
richness of the context into which it occurs. For this project, a
qualitative approach to social network analysis has been adopted.
Social network analysis (SNA) focuses on “relationships among
social entities, and on the patterns and implications of these
relationships,” [
        <xref ref-type="bibr" rid="ref19">19</xref>
        ] in particular on the flow of resources (e.g.,
information) among actors. It provides a set of techniques and
theoretical concepts and properties researchers can use to analyze
and describe social networks. First developed and employed by
sociologists, it is now used in many other disciplines, including
information science [
        <xref ref-type="bibr" rid="ref20">20</xref>
        ].
      </p>
      <p>
        For this study, an egocentric approach to social networks has been
adopted. This approach consists in examining the social network of
focal persons (called “egos”). Egos are asked to name the persons
which whom they maintain relationships (called “alters”). Egos are
then asked to provide information about their ties to alters as well
as about ties between alters in their social network [
        <xref ref-type="bibr" rid="ref19">19</xref>
        ].
Researchers also commonly ask proxy reports about alters [
        <xref ref-type="bibr" rid="ref21">21</xref>
        ].
      </p>
    </sec>
    <sec id="sec-6">
      <title>3.1 Participants</title>
      <p>
        This study is designed to run from May 2010 to April 2011 with the
expectation of recruiting 25 participants. The population studied is
composed of French-speaking adolescents (15-18 year-old) living
in the Quebec province (Canada). This paper presents the
preliminary findings derived from the six interviews conducted to
date, which represent a total of 486 minutes of recording.
Participants were selected following the maximum variation
sampling strategy as described in [
        <xref ref-type="bibr" rid="ref22">22</xref>
        ]. Among the six participants,
four were female. At the time of the interview, five were full-time
high-school students and one was a full-time college student.
      </p>
    </sec>
    <sec id="sec-7">
      <title>3.2 Data Collection and Analysis</title>
      <p>
        Data are collected through in-depth interviews. Social network
theory, together with a review of related works on everyday life
information behavior and on music and identity, provided a useful
theoretical background for the development of the data collection
instrument. The resulting instrument is composed of an adaptation
of the social network-mapping tool developed by Todd and
described in [
        <xref ref-type="bibr" rid="ref23">23</xref>
        ], followed by a traditional interview schedule. The
social network map is filled by the participant with the help of the
researcher. To elicit the names to be included on the map,
participants are asked to think about how they could group people
around them (e.g., school, relatives, neighbors), to note these
groups on the map, and then to name the persons they feel close to
in each group (the alters). Participants are invited to place alters on
the map, using the concentric circles to indicate the strength of their
relationship with each of them, as well as to draw lines to indicate
relationships between alters (the strength of the tie being
represented by the thickness of the line). Participants are then asked
to add on the map any other person with whom they share music
information. They are asked (1) to draw a circle around those with
whom they discuss music most often, (2) to mark with an asterisk
the persons whom they trust the most for music recommendations,
and (3) to draw a box around the name of those with whom they
maintain a relationship essentially based on music (see figure 1 for
an example of a social network map filled by a participant).
Participants are requested to provide information about each alter
and their relationship with them, including information about their
music tastes, the nature of the music information they exchange
with them if any, and the influence they have on their own music
preferences and on those of their group. The interviews also include
general questions on participants’ music tastes and listening habits.
All interviews are recorded. Both the interview and the resulting
social network map are transcribed into computer files. Interviews
are analyzed using NVivo by QSR, a software package designed
specifically for the encoding and analysis of qualitative data.
      </p>
    </sec>
    <sec id="sec-8">
      <title>4. FINDINGS</title>
    </sec>
    <sec id="sec-9">
      <title>4.1 The Influence of Others on Music Tastes</title>
      <p>4.1.1 Recent Changes in Music Tastes
In the introduction of the interviews, participants were asked if their
music tastes had changed significantly in the last three years.
Perhaps unsurprisingly considering the fact that adolescence is a
period characterized by changes, all affirmed that their music tastes
had greatly evolved. But the most interesting aspect of their
answers resided in the reasons they gave to explain it: all were
related to changes in their social network. One mentioned that she
had discovered a new music genre because of her new boyfriend;
three explained that they had changed school and, as a result, had
made new friends through which they had discovered new music
(“You start high school and the people, what they make you listen
to, it’s not the same type of music. And then, by listening to this
music, you start liking it too.”); and two were just not very
interested in music before, but because it was such an important
topic of discussion at school, music had slowly taken a more
important place in their lives.
4.1.2 Opinion Leaders
“Opinion leaders” are defined as individuals who have developed
an expertise in a specific domain. Because of this expertise, people
are more likely to turn to them for information or recommendations,
which makes them influential in their environment. During the
interviews, participants were asked to identify who in their social
network exerted more influence on others in terms of music. Three
self-identified (two girls and one boy) as being an opinion leader
for music in their group. Music opinion leaders were generally not
considered as being influential in other domains. Indeed, in every
densely knit group, each member seems to have his/her domain of
influence, whether it is music, fashion, movies, television series or
books. The analysis revealed that music opinion leaders were
perceived as (1) good communicators, who are (2) highly invested
in music, and who are (3) willing to share the information with their
friends. Their desire to have unique knowledge and to be a resource
person for others leads them to constantly look for new music.
Hence, describing an influential friend, one participant says:
“[Anthony] just got a satellite radio, so he picks up loads of
stations. When they are playing a tune, he sends you the title. And
then, he takes notes of everything. And when he finds a good song,
he gives it to me.” However, opinion leadership is only possible if
one is surrounded by people who have similar music tastes. One
participant, whose social network was mostly composed of
heterophilous relationships, particularly in terms of music
preferences, explained that her tastes were too unusual for an
adolescent and therefore very unlikely to meet her friends’ tastes.
As a result, she did not feel it was relevant to share any music
information with them.</p>
    </sec>
    <sec id="sec-10">
      <title>4.2 The Strength of Weak Ties?</title>
      <p>
        In a highly cited journal article, Granovetter proposed in 1973 the
Strength of Weak Ties [
        <xref ref-type="bibr" rid="ref24">24</xref>
        ], a theory that has proven to be
particularly useful to understand the role people play in information
provision. According to this theory, weak ties (acquaintances)
would be more instrumental than strong ties (friends and family) to
obtain new information because of the high degree of overlap that
generally exists between the social networks of strong ties. In other
words, my close friends, who generally know the same people I
know, are more likely to have access to information to which I also
have access; whereas acquaintances, who usually have a social
network significantly different from mine, are more likely to have
access to different information [
        <xref ref-type="bibr" rid="ref25">25</xref>
        ]. Following this theory, we
could expect that weak ties would be more useful to discover new
music. However, participants’ accounts suggest that weak ties
might not be as instrumental in music discovery as they are in other
contexts, such as when people are looking for a job.
      </p>
      <sec id="sec-10-1">
        <title>4.2.1 The Role of Weak Ties</title>
        <p>In some occasions, participants’ accounts fit the theory perfectly.
Indeed, two participants identified a few weak ties as being
important sources of music discovery for them. In these cases, the
weak ties were people who were much older than they were (their
parents’ age) and their relationship with them was mostly based on
music (i.e., music is their main conversation topic when they meet).
They were considered by participants as experts in music,
sometimes for a specific music genre: one had extensive knowledge
in classical music, two had very large music collections, another
was an amateur musician who loved blues, and one was a music
teacher specialized in jazz (the last two are represented in Figure 1
as Dany and Sylvain). Music information mostly flowed in one
direction: while they admit being influenced by these people, they
did not consider they were influential for them.</p>
        <p>Weak ties, however, were not considered instrumental by the four
other participants for the acquisition of music information. A
possible explanation would be that music preferences are
considered too personal and subjective to trust recommendations
from someone one does not know well. What is more, considering
that adolescents are conscious of being judged on their music
preferences, following advices from weak ties might be considered
too risky from a social point of view. But Granovetter’s theory
nevertheless provided an interesting theoretical framework to
understand who in their network were more likely to represent a
good source for discovering new music. According to the theory of
the Strength of Weak Ties, weak ties are crucial in information
provision because the overlap between their social network and the
Ego’s social network is less important than it is between strong ties.
Although the main sources of music discovery were not weak ties,
the strong ties from whom they were more likely to seek
recommendations were almost always those whose social network
were more different from theirs, mostly those who were going to a
different school. For instance, one participant explained making
new discoveries mainly through her friends with whom she skies
“because we don’t hang out with the same gang at school.”
Exchanging music information with weaker ties also seemed to be
socially motivated. Indeed, music seems to be to adolescents what
weather is to adults: the default conversation topic. Hence, one
participant reported that “at school, everybody has a iPod. So
you’re there, during lunchtime, and everybody has earplugs, so it’s
easy to stop and say ‘hey, what tunes do you have?’” Music can
also be at the origin of a relationship. For instance, one participant
reports having realized through Facebook that some people she did
not know well had music tastes that were similar to hers. This
realization had led her to engage in conversations about music with
them and, as a result, to become closer to them.</p>
      </sec>
      <sec id="sec-10-2">
        <title>4.2.2 The Role of Strong Ties</title>
        <p>
          A lesser-known aspect of Granovetter’s theory concerns the value
of strong ties in information provision. According to the theory,
“strong ties have greater motivation to be of assistance and are
typically more easily available” [
          <xref ref-type="bibr" rid="ref25">25</xref>
          ]. They also have greater
influence and more credibility. This corresponds to the accounts
provided by our participants. Strong ties, including those with
whom they share most of their social network, play a crucial but
different role in music information acquisition than weaker ties do.
In addition to the role of strong ties in music discovery, it emerges
from the analysis that music information was shared with strong
ties also for two other reasons: (1) to maintain or reinforce a
relationship, and (2) to legitimate our tastes. For instance, one
participant describes that she shares music (or lyrics) with her
friends to show that she understands how they feel. Thus,
depending on what they confide in her, she suggests music she
believes will help them go through what they are experiencing.
Another participant reports that when he discovers something new,
he asks his best friend to listen to it so they can talk about it, which,
he will weakly admit, helps him form an opinion about the music.
And which are the strong ties through which music information is
exchanged? Of course, close friends were often mentioned. These
close friends were usually those who have music tastes that are
similar to theirs and who are perceived as having good judgment in
terms of music (i.e., those who have good music knowledge and are
considered to be “independent thinkers”). Hence, one participant
reported trusting a friend who is a musician and explained: “There
are people, you know they are into music, so it’s really something
they know well. So when they talk, you know they don’t give you
titles just to give you titles.” The same participant later added that
she did not trust one of her best friends, although they had similar
music tastes: “[She] doesn’t want to stand out. She does what
everybody else does. She won’t influence you, you’re always the
one who influences her. You tell her you like something, the day
after, she will have downloaded it.” If close friends were pivotal in
the acquisition of music information, older siblings and even
parents were too. As a matter of fact, all participants reported being
influenced by at least one of their parents in terms of music. One
participant explained: “The songs you grew up with, whether you
want it or not, you always end up listening to them again.” Another
said: “I’ve heard [their music] so many times that I listen to it and I
like it really.” This supports the findings of music sociologists who
found that familiarity often leads to appreciation [
          <xref ref-type="bibr" rid="ref26">26</xref>
          ].
        </p>
      </sec>
    </sec>
    <sec id="sec-11">
      <title>5. CONCLUSION</title>
      <p>Considering the small size of the sample, the results presented here
should be interpreted carefully. However, by providing rich
descriptions of the ways in which music is shared within the social
networks of some adolescents, this study provides a first glance at
the role people play in music information acquisition in
adolescence, while shedding some light on the process through
which young adults discover new music through friends, relatives
or other acquaintances. Results suggest that further research on the
characteristics of the structure and the ties of which social networks
are composed, and the impact of these characteristics on the flow of
music information could help inform the design of music
recommender systems.</p>
    </sec>
    <sec id="sec-12">
      <title>6. ACKNOWLEDGMENTS</title>
      <p>This work has been supported by the Université de Montréal, the
Social Sciences and Humanities Research Council of Canada and
the Fonds québécois de la recherche sur la société et la culture.</p>
    </sec>
  </body>
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