Small version of the poster I put together for today’s pop-up research event at the Open University. Node size indicates total number of followers for SoundCloud users based in each city; arrows indicate where those followers come from (so far as we can tell); node colour indicates centrality to the network of these relationships (by eigenvector centrality). If you want more technical details, read last September’s post.
Tag Archives: Graphs
Valuing Electronic Music workshop, 16 May 2014
Attendance at the workshop we organised in May was by invitation only, but the project team’s presentations were video recorded. In this edited version, we explain how and why we have been researching London’s electronic music scene and the valuing of electronic music.
Also available from the Open University podcast site.
Valuing Electronic Music: a video introduction
Back in June, we held our first public event, with live music performances, talks, and free food. The talks and performances were recorded and soon they will all be available online. We’re starting with Anna’s, Byron’s, and my introduction to the Valuing Electronic Music project as a whole. In this talk, we explain how and why we have been studying the value of electronic music, and reveal a little of what we’ve found out so far.
Also available from the Open University podcast site.
Networks of Value on SoundCloud: presentation to the Creative Data Club, 23 September 2014
On 23 September 2014, I gave an invited presentation to a meeting of the Creative Data Club, organised by Sound and Music, the national agency for new music. Also speaking were Chris Unitt from One Further, presenting a study on how arts organisations are using Facebook, Jay Short from inition, showcasing 3D-printed visualisations of social media data, Dan Simpson, talking about his crowdsourcing of poetic composition, and shardcore, telling the hilarious and poignant tale of Alex the twitterbot. Here are the slides, plus a few audience responses and livetweets at the end. The text is based on the same handwritten notes that I extemporised from on the day.
(Photograph by Sound and Music)
The geography of SoundCloud: who’s following whom?
Wanting to find out what was typical SoundCloud behaviour – as opposed to what our case study users were doing – we took a random sample of 150000 SoundCloud accounts earlier this year and downloaded their profile data, plus the profile data of everyone they were following (plus some other stuff, but that’s for another time). One of the things we did with this data was to construct a social network graph showing ‘follow’ relationships at city level: every time our computer program found that a sampled user self-identified with city A followed a user self-identified with city B, it created an ‘arc’ (represented with an arrow) from city A to city B. We then combined all the arcs so that instead of, say, 2000 arcs from city A to city B, there would now be a single arc with a ‘weight’ of 2000. We then imported this data into Gephi, sized the nodes representing cities to reflect the total weight of all the incoming arcs, positioned them with the Force Atlas algorithm, and used the Louvain community detection method to identify ‘clusters’, where a cluster is a group of nodes that are better connected to each other than they are to nodes from outside the group. And here’s the result, with five colours to represent the five clusters.
Visualising how users comment on tracks in SoundCloud
We have been exploring how visualisations can illustrate over time how users comment on tracks in SoundCloud. Commenting has been highlighted in our qualitative research as a way of building relationships and showing appreciation of other musicians’ work. In fact, initial inspection of a sample set of comments is showing that most comments in our samples tend to be positive or constructive, rather than overly critical or negative.
We have created two visualisations:
1. A 30 second snapshot of commenting activity in early years of SoundCloud
On relationships and value
It’s a scary thought, but we’re halfway through the funded stage of this project. The timescale is tightly compressed and it’s been a bit manic at times (especially right now, with a workshop next week and a public event in less than a month).
But we’ve already learnt so much. So I’d like to reflect briefly on an observation Byron made last month, reflecting on the interviews he’d been carrying out with electronic music producers: ‘when I ask questions about valuing and appreciation, people answer about relationships.’ Outside the spheres of commercial music (where value is expressed in economic terms) and art music (where it is expressed in terms of grants, academic appointments, etc), human relationships are the beginning and the end of musical value. So perhaps it’s true that when musicians build relationships through music, they are producing not the opportunity to produce value (the aim of ‘business networking‘), but value itself.
Collecting and analysing data from SoundCloud
As >our qualitative research starts, so does our quantitative research. We have been collecting data from SoundCloud’s API (Application Programming Interface) which is the gateway to access SoundCloud’s data. We have also been updating the IF analysis code written by Daniel Allington for analysing network actions in Interactive Fiction communities, to make it useful for analysing what happens between users on SoundCloud. SoundCloud has made available an SDK (Software Development Kit) for Python and other programming languages, which is a set of functions and programs that we can use in our code to do things with SoundCloud data.