musical

certainly not a piano

not many.

Brass would get messed up [and most of them wouldnt fit in a dishwasher anyway]
woodwinds would get rusted, reeds fuked up, ligaments and keys probably messed up really bad
string instruments would have messed up strings as the strings are very delicate

Definitely not a piano

a tuba probably

Possibly a piano

Ok so cymbals are basically plates
I think everything except drums and strings