This song is from an album of his called "Colma." I really, really recommend that record and it also features drumming from Brain (Primus, Praxis, etc.) It is very, very chill and not his usual technical, chicken head prowess. But, I have listened to that album so much that I can't help but sneak some of those licks in solos and melodies I play all the time. "Electric Tears" is another album that is similar to "Colma." Also, Buckethead has an album called "Population Override" that is very jammy, and not so much the eccentric shred-zilla hub-bub. Peep both of those.

Buckethead - Electric Tears

Buckethead - Population Override