is there an object, or maybe an abstraction, to retrieve a MIDI Note's name out of its MIDI Value? For instance, a 60 would retrieve me "C4" (roughly speaking) and so on? I think that MAX has such object, but maybe I'm missing something in Pd's documentation...
I also have a slightly different version have a look if it may be of interest.

Bests,
Lorenzo
PS: You'll need zexy for this one, it comes with extended.