Clarification of Instruments

[l3en]

Can all the old instruments that don't sustain be renamed to say (classic) and all instruments that do sustain say (sustain)? It's been kinda bugging me that Acoustic Guitar hasn't been renamed Acoustic Guitar (classic). But I want all sustain-less instruments, like harpsichord, ragtime piano, Sax, etc. to be renamed to (classic). 
I hope this gets added!