If you put a noteblock under a transmitter, w/e item passes through it will play a noteblock sound instead of a sculk sensor sound, with the pitch being based on the stack size and the instrument being based on the item being transported.

I'm not sure what to make of this. I can see (hear) the usefulness (being able to distinguish what your system does purely by sound), but I don't think it really fits the mod. Despite that, items don't have instruments, and defining and choosing them for every single item seems ridiculous. Yes, block items could use their block's instrument, but that leaves all non-block items with the same problem.

i mean you dont need to have everyone item set. The idea was to let players use them as an alternative to noteblocks, since you can adjust the speed easier. Essentially you'd just be making it so the note block read the item in the transmitter as it would the item its sitting on.