Recap: SXSW Music Hackathon Championship 2015


The SXSW Music Hackathon Championship was back for its second year. This time several artists teamed up with the hackers to collaborate on projects. The artists included Win Butler, Neon Hitch, and Robert DeLong. Here are the projects that used the Rdio API:

Crowd Jockey
Use a Microsoft Kinect to get the crowd feedback. This hack used the motion detected by the Kinect to compute the level of crowd excitement. The excitement level is then fed into MusicGraph to generate a playlist that plays via Rdio. Winner, best use of the Rdio API.

Discover local music. Uses geolocation to figure out where you are and queries The Echo Nest for a list of local artists. Also uses the Rdio API to play tracks for that artist. Winner, second best use of the Rdio API.

iOS application that queries recently played music from your account and lets you listen to it via Rdio. You can share the track with a friend by displaying a QR code on your Apple Watch. Your friend can scan the QR code and listen from their iPhone. Winner, SXSW Music Hackathon.

We The DJ
Helps you plan and play the music for your next party. When you create a party and invite your friends, they’ll receive an invitation to add music to the party’s playlist. During the party, you can use the Microsoft Kinect to control playback.

Helps you plan the playlist for your next run. During your run it uses the Microsoft Band to figure out your cadence. Post run, it queries MusicGraph to find songs that match that cadence. An Rdio playlist is created from the MusicGraph data to listen to on your next run.

Also checkout Billboard’s recap of the hack day.

∞  April 02, 2015 — 9:00AM

Posted by Devin Sevilla at 9:00AM in Events |


SXSW Music Hackathon Championship 2015

What: SXSW Music Hackathon Championship 2015
When: March 18 – 19, 2015
Where: Hilton Austin Downtown500 East 4th Street, Austin, TX

We'll be at SXSW Music Hackathon Championship again this year. The hack day is free and open to the public. You don't need a SXSW badge, but you'll need to fill out a form to ensure you're a developer.

The event will take place Wednesday and Thursday at the Hilton Austin Downtown. The award ceremony will take place Friday evening at a separate location. See the SXSW Music Hackathon Championship website for complete details.

Event location map

∞  March 06, 2015 — 5:01PM

Posted by Devin Sevilla at 5:01PM in Events |


Recap: Music Hack Day Groningen

Earlier this month, we had the pleasure of attending Music Hack Day at the Chordify office in Groningen, Netherlands. The hack day coincided with the epic Eurosonic Noorderslag music festival, featuring performances by nearly 200 independent artists over four days.

Though the number of hackers was small, and none of the teams wound up using the Rdio API, the quality of the hacks was great. Here's a rundown of what got built:

  • In C(offeeScript) - Site
    UThe folks over at put together this really cool hack. Using Firebase, the Web Audio API, and CoffeeScript, they implemented a browser-based performance site that allows visitors to collaborate on performing Terry Riley's "In C". Visitors can individually select which look to play, and can hear either the whole performance, or just their part through their speakers. Having multiple people visit the site on different computers in the same room gives off a Laptop Orchestra vibe, and sounds really nice. Winner, Rdio prize for Most Creative Hack

  • Mobile Arrange
    Mobile Arrange is a proof of concept iPad app that presents the user with a grid of notes to tap. Using a sample dataset from Chordify, the hack maps relevant notes to the grid based on the chords from a song, allowing you to play along, rearrange, or alter the chord voicings.

  • Flappy Music - Site
    No modern hackathon would be complete without a Flappy Bird knock off. This variation accepts a SoundCloud link, and uses the audio waveform to generate a Flappy Bird level, which you play in real-time with the song. Good luck making it to the end of the song!

  • DJZP Toolkit
    Billed as "a multi-purpose toolkit for the post-post-modern (self-employed) DJ", this Max/MSP hack combines a bunch of interesting technologies, including a Myo armband, and LED wristbands from Dutchband. The hack supports a preparation mode, allowing you to use gestures to listen to songs and add them to a playlist while you're doing other things (like making a sandwich), and a performance mode, that processes the sensed motion and audio to manipulate music and control a sea of LED wristbands.

  • tabbit - Source
    Using the same Chordify sample dataset as Mobile Arrange, the tabbit team decided to build a Guitar-Hero-in-the-browser game. Because of limitations in the dataset, the game only provided the chords' root notes, and didn't quite support audio processing, but it was a solid effort, and a cool concept.

  • Lost in Translation - Site
    Built by the evangelists of one of our competitors, Lost in Translation is a "find local artists" hack. Using your location (or the name of a location that you provide), the hack searches the Echonest for geo-relevant artists, and puts together a playlist of tunes for you to listen to.

This list of hacks is also up on Hacker League, with info provided by the hackers themselves.

∞  January 30, 2015 — 9:00AM

Posted by Kevin Nelson at 9:00AM in Events |


Music Hack Day Groningen 2015

What: Music Hack Day Groningen 2015
When: January 15 – 16, 2015
Where: drie&zestig (Chordify HQ)Boterdiep 63, 9712 LK Groningen, The Netherlands

Start 2015 off right at Music Hack Day Groningen. Register at both Eventbrite and Hacker League. See you there!

Event location map

∞  January 09, 2015 — 1:00AM

Posted by Devin Sevilla at 1:00AM in Events |

DocumentationReleasesWeb Service API

Web Service API Improvements

We've got three new features for the Web Service API- just in time for some fun hacking over the holiday break!

Keep Listening

Keep Listening

Know what your user has been recently grooving to with the Keep Listening API. With a list of up to ten of the latest sources you'll be able to have a much more targeted view of a user's current mood and tastes. Requires user authentication.



The Favorite API endpoints are now available to everyone. You can view and modify a user's favorite tracks, albums, playlists, artists, and stations. Synced (aka Downloaded) information is also available to view and edit. The Collection endpoints are still available but are now depreciated. Requires users authentication.

Dominant Color

Dominant Color

With the dominant color extra you can now use the Rdio selected color from album artwork, custom playlists, and stations. It's not just the most saturated and it's not just the most common- the algorithm was specially tailored by our designers to pick the "best" color available.

∞  December 19, 2014 — 8:00AM

Posted by Rebecca Stecker at 8:00AM in Documentation, Releases, Web Service API |

Android SDKReleases

Android SDK v2.0.2

Version 2.0.2 of the Rdio Android SDK includes the following improvement:

  • Removes cookies after login so users can authenticate with a different Rdio account

Download the latest release, checkout the getting started guide, and let us know what you think.

∞  December 04, 2014 — 5:23PM

Posted by Rebecca Stecker at 5:23PM in Android SDK, Releases |

iOS SDKReleases

iOS SDK v2.1.4

Version 2.1.4 of the Rdio iOS SDK includes the following improvement:

  • Fixed login view when device is in landscape mode

Download the latest release, checkout the getting started guide, and let us know what you think.

∞  November 14, 2014 — 4:17PM

Posted by Rebecca Stecker at 4:17PM in iOS SDK, Releases |


Recap: Music Hack Day Boston 2014

Music Hack Day Boston 2014 took place during a chilly, but lovely weekend in Microsoft's NERD building. A happy collection of hackers were in attendance and the event went smoothly from start to finish.

The hacks at this event were music-creation focused. The Seaboard folks were in attendance and the boards brought were put to excellent use, the Sea of Grain hack just being one example. Other hacks of note were auditory.vim which (almost) makes me want to learn how to use the Vim environment and the Keplerphone which lets you listen to the music of the stars.

There were a good number of Rdio users in attendance and a couple of fun Rdio hacks produced:

  • JukeApp - GitHub, Demo video
    Automagically create dynamic music playlist based on who is in the room. Winner, best use of Rdio API

  • Aardvark - Site
    A playlist generator based on Twitter mentions

  • Meydio
    Uses the Meyda JS library to visualize audio data on Rdio in Chrome

All in all the crowd and demos were top notch. The bus trip at the start of the night from the Microsoft office to the Spotify office proved to be a great bonding experience. Definitly looking forward to Music Hack Day Boston 2015!

A list of all of the hacks is up at Hacker League.

∞  November 14, 2014 — 9:29AM

Posted by Rebecca Stecker at 9:29AM in Events |


Music Hack Day Boston 2014

What: Music Hack Day Boston 2014
When: November 8 – 9, 2013
Where: Microsoft N.E.R.D Center1 Memorial Dr #1, Cambridge, MA 02142

Join us in Boston again for another exciting Music Hack Day! While you wait in eager anticipation for the event, why not check out the hacks from MHD Bostin 2013 and 2012!

Event location map

∞  October 30, 2014 — 9:29AM

Posted by Rebecca Stecker at 9:29AM in Events |


Recap: Music Hack Day Amsterdam 2014


The Amsterdam chapter of Music Hack Day has been going strong for a while now. This weekend marked the fourth annual event, and as always, the environment and the hacks were nothing short of inspiring. People worked on formant synthesizers, web audio and web MIDI synthesizers. The Axoloti project, which was started at the first MHD Amsterdam showed off some great DIY hardware tricks, and one team even hacked together a bunch of digitally controlled actuators for a trumpet. You can check out the full list of hacks on Hacker League (link at the bottom), but before you do, check our our rundown of the hacks built with Rdio.

  • MiXTee
    MiXTee is a service concept that lets you print out t-shirts adorned with your favorite album covers them. Connect to Rdio to grab your favorite playlist, use the MiXTee editor to organize the album art on your shirt, and click “Go” to have a t-shirt printing company print and mail you your shirt. The back of the shirt also has a QR code to point people you encounter on the street over to your playlist. Winner, best use of the Rdio API

  • lyrics sun burst
    A mashup between Rdio and musiXmatch, Lyrics Sunburst provides a new way to visualize the lyrics to whatever you’re listening to at the moment. Verses and stanzas are organized radially in a sunburst, while the current line shows on the right.

  • Epic Shuffle
    Have you ever wished you could shuffle Rdio’s entire catalog? Well, you’re in luck, because Epic Shuffle is an iPhone app that does exactly that! Using a cryptographically safe random number generator, the app pumps out a completely random stream of tracks, with absolutely zero guarantee of cohesion from one track to the next.

  • Linkfire
    The Linkfire team is working on a musical web widget / link aggregator for the tweeting and the blogging. For Music Hack Day, they incorporated into their widget the Rdio API for playback, and musiXmatch for lyrics.

See the whole list on Hacker League.

∞  October 15, 2014 — 12:01AM

Posted by Kevin Nelson at 12:01AM in Events |