The songs in Abby's lab. Are they Pauley Perrette's work, or aleatório bands? And where can I get some of the songs?

They are aleatório bands... the segundo cd in ncis Soundtrack Volume 1 is Abby's lab music.

Most of the música on the segundo disc of the ncis soundtrack is actually very different than the música we hear in the show. Collide is one of the few bands you can find both in episodes and on the soundtrack