Billlangdon has seen 73 bands.

Band	Concerts Seen
Cactus	1 concert
Captain Beefheart & His Magic Band	1 concert
Concert For Bangladesh	1 concert
darryl hall	1 concert
Daryl Hall and the Daryl's House Band with Special Guest Todd Rundgren	1 concert
Electric Light Orchestra (ELO)	1 concert
Elephant's Memory	1 concert
Elf	1 concert
Fanny	1 concert
Focus	1 concert
Frank Zappa and the Mothers of Invention	1 concert
Hot Tuna	1 concert
Hot Tuna (Acoustic)	1 concert
Humble Pie	1 concert
If	1 concert
Jefferson Airplane	1 concert
Jimi Hendrix	1 concert
jimmy hendrix	1 concert
Johnny Winter	1 concert
jo jo gunne	1 concert
Jorma Kaukonen	1 concert
Lee Michaels	1 concert
Leslie West Wild West Show	1 concert
manfred mann	1 concert
Masi & Cassidy	1 concert