excerpt from wikipedia -
Corky Siegel's professional music career began in 1964, when he met guitarist Jim Schwall. Both were studying music at Roosevelt University in Chicago. The two became a duo, performing blues music. They landed a regular gig at Pepper's Lounge, where well known, established blues musicians such as Muddy Waters, Howlin' Wolf, and Willie Dixon would often sit in. After a while the duo became a quartet, the Siegel-Schwall Band.
The Siegel-Schwall Band enjoyed increasing popularity, and by 1967 were touring nationally, playing at large rock venues like the Fillmore West and sharing the bill with famous rock bands. Between 1966 and 1974, they released ten albums. After 1974, they stopped playing concerts, but the band re-formed in 1987. They still play occasional live dates and have released two albums of new material. The band currently features drummer Sam Lay and bassist Rollo Radford; Lay played with Siegel in the Happy Year Band of 1973 which also featured Chicago blues guitarist Albert Joseph.
The idea of combining blues and classical music was first suggested by classical conductor Seiji Ozawa. Ozawa brought together the Siegel-Schwall Band and the Chicago Symphony Orchestra. They first performed "Three Pieces for Blues Band and Symphony Orchestra", by William Russo in 1968. In 1973, the band and Ozawa released a recording of this work performed with the San Francisco Symphony. In 1975, Siegel and Ozawa, with the San Francisco Symphony, first performed another William Russo work, "Street Music: A Blues Concerto". A recording of this piece was released in 1979.
Inspired by his collaboration with Ozawa, Corky Siegel formed Chamber Blues in 1988. The group's music combines elements of classical, blues, and jazz. The band consists of a string quartet – two violins, a viola, and a cello – along with a percussionist Frank Donaldson, Siegel on harmonica, and sometimes doubling on piano. Chamber Blues is still together. The group has toured nationally and has released three albums......