Mark Hummel is bringing a few all-star blues friends for the 12th annual KXCI House Rockin' Blues Review. He headlined the fifth annual event in 2016.

RETRO FIND: This extremely rare instrument was rumored to raise the dead and cause insanity Benjamin Franklin's haunting 18th-century glass harmonica was brought back to life in the 1980s.

RETRO FIND: This extremely rare instrument was rumored to raise the dead and cause insanity Benjamin Franklin's haunting 18th-century glass harmonica was brought back to life in the 1980s.

RETRO FIND: This extremely rare instrument was rumored to raise the dead and cause insanity Benjamin Franklin's haunting 18th-century glass harmonica was brought back to life in the 1980s.

RETRO FIND: This extremely rare instrument was rumored to raise the dead and cause insanity Benjamin Franklin's haunting 18th-century glass harmonica was brought back to life in the 1980s.