With last week's Mashup of the Day winner LastLyrics, you now have your choice of over two dozen web mashups about music that also integrate song lyrics. If you look at this list of song lyrics mashups, you'll see that most of them make use of either one of the 2 lyrics APIs we have listed, one from LyricWiki.org and the other from Lyricsfly.
In May, PW reported on Gumroad's API that aimed to simplify online transactions. Indeed, the earlier release did move Gumroad towards its goal: "to democratize the ability to sell stuff online." However, Gumroad's latest offer, Platform API, simplifies the online buying process even further. The earlier API required buyers to register for a Gumroad account and required the use of links. The Platform API removes the need for links and buyer accounts. Instead, an entire transaction occurs on the merchant's site.
Music mix sharing site 8tracks now has an 8tracks API to search and play mix tapes. Developers can access the mixes, which each contain at least 8 tracks, by tag, simple search, popularity, those added recently, or randomly. The site announced its API at the recent Music Hack Day Boston.