The first was organised by Dave Haynes and James Darling and held at the London offices of The Guardian newspaper over the weekend 11/12 July 2009.
[1] The event was attended by around 200 developers who had 24 hours to build new hacks or web applications using the API's or tools of 10 participating companies.
These companies were 7digital, BBC Music, The Echo Nest, Gigulate, Last.fm, PeoplesMusicStore, Songkick, SoundCloud.
Many developers stayed overnight at the venue and over 35 hacks were built, submitted and demo'ed by the end of the weekend.
[2] The events are attended by a diverse range of music and technology enthusiasts.