Spider John Koerner didn't want to call it a retirement party.
"It's a misnomer. I've been retired for quite a while," explained the legendary 78-year-old Minneapolis folk-blues singer/guitarist.
The folks at the Cedar Cultural Center needed a name for a program featuring local singers influenced by Koerner as well as a rare Minneapolis set by Koerner and his Boston-based sidemen.
Koerner started referring to the concert as the "conspiracy" to get him back onstage.
The Cedar settled on "Spider John's Legacy."
"That's a high-flying kind of word for the way I am," said the ever-modest Koerner, a West Bank institution who is known 'round the world. "In a sense it fits because it has to do with the young people who picked up on it."
Ask any of the performers on Sunday's bill and they'll rhapsodize about the soft-spoken folk-bluesman who plays loud acoustic music accompanied by the heavy rhythm of his feet.
"Those early records he made with Dave Ray and Tony Glover were such an interesting thing to come out of this city — three teenage white boys playing country blues like they were born with it," said Jack Torrey, 30, of Minneapolis-based Cactus Blossoms, a vintage twang duo. "The whole mystery of that was appealing to me. They kind of got rid of the rules."