Buckethead performs on Thursday, July 7, and Friday, July 8, at Great American Music Hall. 9 p.m., $27 advance, $30 door; www.gamh.com.
The artist known as Buckethead is an unusual variant on "guitar hero." He knows six-string constructs like a salamander knows wet leaves, but few know the face, or identity, of Buckethead (due to his ever-present bucket-shaped hood). Buckethead's style is forged from the metallic assaults of Slayer and Steve Vai, Eddie Hazel's psychedelic funk, and the free-improvised fervency of (saxophonists) John Zorn and Peter Brötzmann. He started out in local metallic-funksters the Deli Creeps, then branched out to record and/or perform with disparate luminaries Les Claypool, Bernie Worrell, and actor and poet Viggo Mortensen (yes, Aragorn from the Lord of the Rings films), and even did a stint in the reformed Guns 'N Roses. Who can guess what Buckethead will bring to S.F. for his upcoming shows? You can bet the rent it'll be memorable.