Why do instruments 2, 3 and 4 all use the same built-in patch? 5 and 6 also use the same patch.
lol most likely i had them as something different beforehand, before i changed them around to what they are now. that happens to me a lot more than it should, and i never really optimize it because i don't think much of it, leading to having a lot more instruments around than necessary.
Sometimes I've unused instruments around because I tend to remove and change sections, sometimes droping instruments with out removing them completely. I guess that's how some game developers do things as well.
I don't think game developers (especially NES game developers) would leave in unused stuff on purpose, considering the very limited amount of space they're given. In the context of a modern-day NES tune though, it's probably okay (but not preferable) to leave in unused instruments. There's a feature to remove them anyway.
I'm not sure, but I think a few tunes in Sonic 3 left in unused instruments found in other songs.
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