Chicago Transit Authority: Hey, these guys were good....

...Before the crap they put out later as Chicago. Class act by honoring their contract to play St. Paul's HS in Bristol after their first album exploded. Remembering their great concerts at the Yale Bowl, one with Delaney & Bonnie opening:
Concert summary from Wolfgang's Vault:
Robert Lamm - keyboards, lead vocals
Terry Kath - guitar, lead vocals
Peter Cetera - bass, lead vocals
James Pankow - trombone, percussion
Lee Loughnane - trumpet, percussion, background vocals
Walter Parazaider - woodwinds, percussion, background vocals
Daniel Seraphine - drumsThese recordings are from the final night of a run that featured Chicago Transit Authority opening and closing a show that also featured sets by The Youngbloods and Colosseum in between. These remarkable sets capture the band riding high on the great success of their debut album and performing that material, along with some of the songs destined for their second album, which they were recording in Los Angeles that same month. Many of the songs that established the band are here and remind us that this was once a band with serious musicianship whose wide-ranging creativity was both aggressive and inviting. The group had an undeniable flare for writing captivating pop songs, but it is the lengthier, more experimental material that is most impressive here. Terry Kath's sizzling neo-psychedelic guitar playing is simply outstanding on these sets and reveal exactly why Jimi Hendrix himself was so impressed. Blood, Sweat & Tears (with founder Al Kooper long gone) was the other horn band experiencing great commercial success at this time, but Chicago had a gutsier sound, and in many ways were fulfilling the promise of the original Al Kooper-led version of that band. Chicago would become progressively less adventurous with every album, but in 1969, they were one of the most confident, diverse, and just plain exciting bands on the planet. - complete concert summary