mozart's pedal-piano

[pianonut]

this isn't really a question, although i AM curious if anyone has seen a pedal-piano.  in a class i'm taking on late 18th early 19th century music, we have an article that we are reading that tells about mozart's not writing all his concertos for pianoforte alone.  quoting, it says "indeed, leopold never mentions even the existence of a piano in salzburg during the 1770's; his first reference occurs on 4 dec. 1780, when he wrote to wolfgang "just this instant Mr. von Edlbach and three strangers also came into the room...your sister had to play them a short piece on the pianoforte."

he makes a case for the K242 and K246 being originally intended for harpsichord (as also the K175 and K238) he says that from 1781 on, mozart probably did play piano  especially K450 (probably to inaugurate his new fortepiano?!  his pedal-piano was probably aquired some time after the main instrument (the manual and pedal were not built as a pair).  the K467 was written and advertised in concert as "will not only play a new, just completed piano concerto for forte piano, but will also extemporize on an unusually large forte piano pedal."

has anyone seen this instrument, or anyone play it?  how did mozart add to the K467 with his feet (on the pedal)?  double octaves?  jus thought this was quite interesting!

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[Lance Morrison]

Schumann wrote for the pedal piano as well, and this/these work/works were transcribed by Debussy for two pianos

Mozart also wrote for the beautiful glass armonica, a glass instrument invented by Benjamin Franklin
https://www.glassarmonica.com/gallery/index.html

[pianonut]

very cool.  they were open to so many new ideas.  when did they have time to practice?  pedal piano sounds difficult, though i guess if you play the organ, it might be a little similar YET isn't the pedal piano quite a bit harder (smaller pedals)?