Buckethead wrote Colma for his mom, who was suffering from colon cancer at the time, so she would have something to listen to while recovering. Not entirely somber, the album is still meant to relax the listener. This is Buckethead, however, so even though he's mostly playing acoustic guitars, there are still jaw-dropping moments ("Big Sur Moon"). He can't resist getting a little noisy, too, with "Machete" and a downright creepifying title cut that features jagged shards of pick-on-string shriek that comes out of nowhere. Not exactly the most chilled-out song, but it's pretty awesome.