Fetching my saved tracks from Spotify

The @SpotifyPlatform team just pushed out an update to the Spotify Web API that lets a developer retrieve and manipulate the tracks that a user has saved in ‘Your Music’. To show off this new functionality I wrote a quick demo that shows how to fetch the saved tracks for a Spotify user via the nifty new API.  The demo will first solicit permission from the user, and if the user grants such permissions, the app will then retrieved the saved tracks and show them as a simple list.

My Saved Tracks

 

The demo is on line here: My Saved Tracks and the source is on github.

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Set Listener update – now listen to specific shows in Spotify

Last month I released the Set Listener –  a web app that lets you create a Spotify playlist for an artist’s most recent show.   A frequent request by users has been to allow the creation of a Spotify playlist for any show, not just the most recent one. However, I didn’t want to have to implement an elaborate event search and browse feature (this was supposed to be a quick hack) especially since SetList.fm already implements this browsing. So instead I did a bit of hack to implement this feature – in addition to accepting an artist name, the Set Listener will accept the url of any setlist.fm show. If you enter a setlist.fm show URL, the Set Listener will grab the songs for that show and generate the playlist. Here’s the flow:

Go to setlist.fm and browse until you find your show of interest. Grab the URL

God_Is_an_Astronaut_Concert_Setlist_at_Melnā_Piektdiena__Riga_on_May_19__2014___setlist_fm

 

Paste the URL into the Set Listener and you should be good to go:

The_Set_Listener

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1st Web Audio Conference

This January IRCAM and Mozilla will be hosting the 1st Web Audio Conference in Paris France.  From the conference page:

The WAC is the first international conference on web audio technologies and applications.

The conference welcomes web R&D developers, audio processing scientists, application designers and people involved in web standards.

The conference addresses research, development, design, and standards concerned with emerging audio-related web technologies such as Web Audio API, Web RTC, Web Sockets, and Javascript.

Contributions to the first edition of WAC are encouraged in, but not limited to, the following topics:

  • Innovative audio and music based web applications (with social and user experience aspects)
  • Client-side audio processing (real-time or non real-time)
  • Audio data and metadata formats and network delivery
  • Server-side audio processing and client access
  • Client-side audio engine and rendering
  • Frameworks for audio manipulation
  • Web Audio API design and implementation
  • Client-side audio visualization
  • Multimedia integration
  • Web standards and use of standards within audio based web projects
  • Hardware, tangible interface and use of Web Audio API

This is the first Call For Papers that I’ve seen that, in addition to a paper and poster track, also has a Gig submission track.  Yes, you can propose a 20 minute gig. Accepted gigs will be presented in the conference concert.  I’m thinking of a combined Infinite Jukebox + Ellie Goulding visualization – 20 minutes of flying cubes will show ‘em.

The submission deadline is October 10.  Time to dust off my Latex skills.

 

 

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Most Distinctive Fourth of July Songs

Independence day is just a few days away so I spent a bit of time over the weekend digging into the data to see what are the most listened to songs on the Fourth of July. Eliot wrote a great piece about the data for the Spotify Blog: The Most Distinctive Fourth of July Songs in the 50 U.S. States. Here I dig in a bit deeper.

From a musical perspective, The Fourth of July is a very interesting holiday. It’s a big summer outdoor party  – and the music reflects that. On the Fourth, people listen to patriotic songs,  BBQ songs, popular songs, party songs, songs about place and history. People listen to wide range of genres, from rock and pop to folk, country, marches,  and new weird america.   To see what music people listen to on the Fourth I went through about 5,000 playlists that people have created that have ‘fourth of july’ in the title.  I aggregated the songs across all of these playlists and created a playlist of the top 100 or songs.

As you can see, the playlist is a mix of US-centric music and summer party music – which is a pretty good reflection of what people actually listen to on the Fourth of July.  But I wanted to go a bit further and see what music was particularly distinctive for the Fourth of July – as compared to any other summer outdoor party playlist.  To do this, I collected the top most frequently appearing songs on the Fourth of July playlists and scored each song by calculating the ratio  of the play counts that occurred on July 4, 2013 in the U.S. vs. play counts for the song during the following weeks.  Songs that were played much more frequently on the Fourth than during the rest of July get a much higher score.  Ranking songs by this ratio yields the list of distinctive Fourth of July Songs:

I think it is a pretty good list of the music that we listen to more on the Fourth of July than on any other day. There’s a John Philip Sousa march, Woody Guthrie’s This Land is Your Land, Katy Perry’s Firework, lots and lots of country music. Some artists appear more frequently than others – Bruce Springsteen, John Mellencamp and Lee Greenwood are Fourth of July favorites.

I’m always interested in regional differences in how we listen to music, so I looked at the listening in each state in the U.S. to see which of the core Fourth of July songs was listened to more.  If you look just at the most popular Fourth of July song in each state the results are pretty boring – the most popular song in 46 out of 50 states for July 2013 was Party in the USA by Miley Cyrus – but if you look at the distinctive score (the ratio of plays on the fourth to plays during the following weeks), you get a more nuanced view of how people listen to music. Of course we represent this as a map:

fourth-map

So the real question is, are these playlists generated by data mining any good?  As actual playlists to listen to, I don’t think so. They are too incoherent, with jumps that take you from a sappy country song, to a teen pop song, to a march that will give you iPod whiplash. Compare the playlists above to a human-curated Fourth of July Playlist:

This is a much more listenable playlist. However, I think the data mined playlists do provide an excellent starting point – a  big pool of Fourth of July songs.  With a genre and popularity filter these could be turned into decent, listenable playlists. Similarly, give this pool of Fourth of July songs to a team of music curators and they can build some pretty fantastic Fourth of July playlists for every type of music fan.

 

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Fetching My Starred Items from Spotify

I wrote a quick demo that shows how to create a web app that fetches the starred items for a Spotify user via the nifty new Spotify Web API.  The demo will first solicit permission from the user, and if the user grants such permissions, the app will then retrieved the starred list and show the tracks in a simple list.

My_Starred_Items

The online demo is here: My Starred ItemsThe source is on github.

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The Set Listener

Going to a show? Not totally familiar with an artist’s catalog? Give The Set Listener a try.  The Set Listener is a web app that will create a Spotify playlist of an artist’s most recent show.

 

The_Set_Listener

 

To use The Set Listener just type in the artist name, and hit the search button, you’ll be presented with a playlist of songs from that artist’s most recent show.  Hit the ‘Save this playlist to Spotify’ button and you’ll have a Spotify playlist that you can listen to on your desktop or on your mobile phone.

The app relies on the SetList.fm API and the brand new and super spiffy Spotify Web API. Now that the Spotify Web API supports the creation and saving of playlists creating these types of apps is quite straightforward – just a few hours of coding. This was my first time using the SetList.fm API – its a super resource for setlists from concerts by thousands of artists.

Check out the app online at The Set Listener.  The code is online on github.

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My new superpower – creating Spotify playlists from a web app

labs_echonest_com_CityServer_callback_html_access_token_BQBcbPg0FicOcTQ2Epc5XxGkMNuQPU4LA-ou9LP0lo7qx-4FNd7QlJNXtXziRF04gPtbATfmh9Xe25vJeUVrOQLOrhpQi4La3jT6dEUc7XHD_7iB9oStWBN9PuNGoWB_WKg8goz92CQpYHVM50z_wjY_token_type_Bearer_expires_in_360The new Spotify Web API allows the developer to create and add tracks to a playlist on behalf of a listener. This is a pretty powerful feature, opening the door for a whole range of apps. For instance, this weekend, I added the ability to save a Roadtrip Mixtape playlist, so you can now actually take your mixtapes on the road.   The code is on github if  you are interested in seeing how it is done.

 

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