[pclark]

wow, this is awesome.

but please track Spoon :) - or is this algorithmically choosing bands?

i find the roll over for last.fm / spotify exceptionally jarring - how about icons to the right of the spark lines or something?

[reiddraper]

It's all done algorithmically, here's a good blog post about the data: http://musicmachinery.com/2009/12/09/a-rising-star-or/