Our API directory now includes 27 radio APIs. The newest is the Livio Connect API. The most popular, in terms of mashups, is the BBC API. We list 28 BBC mashups. Below you'll find some more stats from the directory, including the entire list of radio APIs.
Peachnote is quite an innovative approach to music analysis. Developed by Vladimir Viro, a renaissance man who bridges the worlds of classical music and advanced mathematics, the Peachnote API provides the ability to search a large collection of public compositions by melody or sequence of chords.
Expect a mash pit, not a mosh pit, at this weekend's Music Hack Day in London. Over 200 people will come together from the UK and across Europe for what the organizers call "the best industry to hack on, with the cleanest APIs and the most enjoyable content."