WOW, this is awesome... it'll go perfectly with the 'alien green' bartop I'm making.
How easy would it be to make it 16 selection (A-D, 1-4) or 36 selection (A-F, 1-6) instead of 48?
I tend to use my 6-button layout to control DWJukebox, where buttons 1-4 are A-D (then switch to 1-4) etc