Pathetique

you're gonna have to stop using your right hand to baroque your wang for at least two months to play that

>>74261112
iirc the lowest note is the lowest G -maybe F#- and the highest is like the ledger line Eb but maybe you should look at the score and find out

I'd recommend getting an 88 anyway, it's worth having if you're serious about learning piano. Small midi keyboards are great for production and learning basics but you won't get the same feel from a properly 88 weighted-key keyboard (with sustain pedal), espcially if you're into learning Beethoven.