Please be merciful... This keyboard post is to be much, much improved, especially regarding the choice of sounds and instruments...
I may be wrong, but it seems they use only a regular, non-electric piano on stage until January 1973 (LA Forum) since their keyboardists were Nicky Hopkins and Ian Stewart.
Nicky used a toad piano. Ian Stewart used a grand piano.
Quite difficult to find pictures on stage with Nicky and Ian in those years…. Please fill the gap…
Billy Preston had both a grand piano and a synthetiser in 1973 as well as in 1975 and 1976. However, there are 6 sizes of grand piano, and it may be interesting to know which size Billy and Ian Stewart used, since it’s also a question of logistics for touring
At that time, Ian had a grand piano aside Billy
Mick also used a keyboard on Fool to Cry, Far Away Eyes and later on Worried About You. Please tell us more…
in 1976, Bill used a keyboard on Fingerprint File, while Ronnie played the bass guitar. Please find a pic
Ian Stewart used a grand piano, Ian Mc Lagan some other keyboards, not sure if you call it a piano
From 1989 and later on: two ranges of keyboards, with Chuck leavell and Matt Clifford, not sure if any of those instruments may be call a piano
Special player: Brian Jones playing piano on Let’s Spend the Night Together 1967
Special guest: Stephen Stills in Amsterdam 1970
Special guest: Elton John in Fort Collins 1975 (no picture on stage)
Some interesting interview with Ian McLagan:
Ian with the Faces
Ian with the New Barbarians, Keith also on keyboard