Not to take away from the bigger discussion, but you nor the site proper has any method to measure whether the arrangements on site increase or decrease interest in officially released sources. Assuming one way or the other is disingenuous and such a point obfuscates the original argument.
Mmhmm, that's right and that's where my argument's weakness lies. ^^
That being said, this is when we talk about "goodwill" - doing something in goodwill means there's no harm intended for the other party, and I'd really like to assume that we're all arranging out of goodwill, and no one has the intention of stealing Nintendo's market shares through making piano arrangements. This argument could be shut down in the same way - that there's no grounds for assumption that all of us write out of goodwill - but hey, I believe in our community. And let's ignore the reason for a while just for this part
Besides, I'm quite sure that outdoing Nintendo's collections of VGM using piano arrangements (which by definition are derivative works of the originals) is an impossible ambition. So let's look past that.
I just realised I haven't brought up my point yet haha, sorry for the long defense. But here it is - when we credit the composer and even acknowledge the original copyright source in the sheet requirements, we're doing so out of goodwill. Fair use makes it such that we could get away with claiming all credit for the original, but that's just...wrong. It's not a violation of creative rights in that sense, but it's just something that we know, by some code of ethics, is wrong.
I'd like to think that with all these tiny measures put in place, the NSM standard is all about goodwill. We have no intention to steal recognition from the original composer, therefore we acknowledge his rights and publicise his identity.
To summarise this, once again:
- arranging any creative work is legally permitted under certain circumstances
- the acknowledging of copyright and composer identity by the NSM guidelines is done in the name of goodwill, even though it's not a stated rule
- therefore, cut some corners and use some human emotion, and we realise that we're not here to steal market shares off nintendo
Hope this makes sense