The Unofficial PHP API Client for Pandora is an experimental code library that helps applications written PHP to easily access the Unofficial Pandora API. The library's dependencies include php_openssl and php_mcrypt.
There have been a lot of new socially based mashups showing up recently. In fact, we recently topped 700 social mashups. While many of these use the Facebook API or Twitter API, there are many more social APIs. The mashups below run the gamut, though, yes, also include Facebook.
The site claims a "huge collection of hit lyrics." Your next music application can tap into the database with the new ChartLyrics Lyric API. You can use it to search in several ways and, more importantly, obtain the text that makes up the words to popular songs.
iLike, Facebook's favorite music service, has officially launched their new API. TechCrunch reports that iLike is partnering with Google, TypePad, Flixster, Connected Weddings, and others, in the launch. The music itself is provided by Rhapsody.