Title this thread for me *rolls eyes*

[D'Snowth]

TMS, and the early-period Muppet specials and movies (at least prior to MTM) always had a really unique-sounding piano stringer whenever it was needed in the score, whether if it was during TMS theme (especially Rowlf's "square" solo when The Electric Mayhem went anklin'), or whenever a character would play for music interlude, show-stopping number, etc. Even the piano performances by both Paul Williams and Rowlf in TMM.

I've really be curious was to what kind of piano (or pianos) were used for Muppet music during those early days?