Robert Lamm

"Plus, on tour there were still all their older hits to be played too, providing lots of room for the three horns and Robert Lamm's Hammond B3 organ to still shine."

Lamm is seen playing the Pianet in the music video for "I'm a Man".

Robert Lamm's Fender Rhodes Mk-80, used in the 1980s, is listed for sale on eBay, complete with his signature.

Lamm with his ES8 at the 48th Songwriters Hall of Fame

"I started playing that prior to the recording of the Hot Streets album. I probably had one of the first ones that were actually taken on the road. It’s a wonderful machine. I found that I didn’t need the Hammond B-3 anymore when I had the CS-80. I use the organ voice a lot. If I want a Jimmy Smith sound, I use the 16’ and the 2 1/2’ or 2 2/3’. Then if I want the kind of sound I had in “Vote For Me,” I just push it down to the 2’ to bring up the brilliance and resonance a little bit, and fool around with the upper and lower keyboard balance. With that and the Leslies, it really growls."

Lamm is seen with the Taylor performing "Beginnings" with Chicago at the State Theater, Minneapolis, 2015.

Lamm (far right) playing the AX-Synth with Chicago in 2018.

Lamm performing with the M3 onstage during the 2016 Pre-GRAMMY Gala and Salute to Industry Icons.

Lamm playing the AX-7 in 2013

Lamm's photo on the official Chicago website, showing him with the LN 1000.

Shown in this 1972 performance of "Dialogue".

"We needed another singer for me to be able to comp on my Hammond M-3 and bass pedals. I was singing at the same time, and sometimes also playing the Wurlitzer, and I was getting schizophrenic, just trying to do all that stuff. So we finally had a bass player, who sang his ass off. He worked out very well."

This article from the Courier-Post describes Lamm's use of a Hohner Clavinet C on Chicago's second album. The newspaper was from August 29, 1970.