I got some nice feedback about the project from people. Brian Shim mentioned a trick of setting up a mic and getting a sound clip that has both the sound of the tap and the actual sound replay, so you can quantify the lag more precisely.
Admittedly, my humble project was a bit eclipsed by Tristan Jehan's talk about The Echo Nest. To brutally over simplify, part of their core is similar to what Pandora and the Musical Genome project do, but they use big data to get there, and when combined with an open API (and a number of music hackathons) they get some amazing stuff done... not just charting the relations between artists and songs in a metadata kind of way, but chopping and splicing and analyzing the song files themselves. Here were some of the projects mentioned:
- musicmaze.fm -- a bit like Apple's Genius Mix, click through a hierarchy of related artists, complete with sound clips.
- labs.echonest.com/SixDegrees/ - 6 Degrees of Black Sabbath - like the Kevin Bacon game for finding chains of artists, related through collaboration (my favorite it "Louis Armstrong" to the "Sex Pistols")
- http://the.wubmachine.com - upload a track, and have it spliced and remastered as dubstep, electro, or drum and base.
- http://static.echonest.com/BohemianRhapsichord/ - a toy that's a crazy interactive splice and dice of Bohemian Rhapsody
- Tristan's own Swinger that molds any song into a triplet-y swing rhythm (click for "White Rabbit")
- Tristan also made The Videolizer that syncs up video clips of people dancing to any song -- here's an example w/ Gorillaz "Feel Good Inc."
- The Wreckommender would tell you which artists were most unlike another artist... find your musical friends or allies...