Every important Chicago blues musician sat in with Corky and Jim at Pepper's, including Junior Wells, Buddy Guy, Billy Boy Arnold, Little Walter, Muddy Waters, Magic Sam, Otis Spann, Bo Diddley, Lazy Lester and Sam Lay, just to name a few.
While they weren't as commercially successful as Butterfield or Mayall, the band was still able to perform at large venues such as Fillmore West.
After four albums with Vanguard, the band signed with Wooden Nickel, a Chicago label distributed by RCA.
In 1975, Siegel formed the Happy Year Band with drummer/vocalist Sam Lay, Albert Joseph on guitar and Rollo Radford on bass.
This unusual group features Frank Donaldson a veteran drummer who spent 20 years with jazz musician Ramsey Lewis.
Siegel continues to record, has earned several composing honors and is a regular performer and lecturer in the Chicago Public Schools.
The Siegel-Schwall Band toured in 2014 with Corky, Jim, Rollo, Lay, and Sambo Arthur Irby.