The U.S. has the concept of fair use see 17 U.S.C. § 107

1. the purpose and character of the use, including whether such use is
of a commercial nature or is for nonprofit educational purposes;
2. the nature of the copyrighted work;
3. the amount and substantiality of the portion used in relation to
the copyrighted work as a whole; and
4. the effect of the use upon the potential market for or value of the
copyrighted work.

Anyway for the majority of examples it should be the case that out of
copyright material can be had, but some things will by there nature
require such small examples of such copyrighted material due to more
innovative typesetting treatment or notation practices that occurred
after the obscenely lengthy protection period. of course one might
make parodies of such material such as mucky mouse or what have you.

Shane

On Thu, Dec 5, 2013 at 4:05 PM, Ryan McClure
<ryanmichaelmccl...@gmail.com> wrote:
> A quick question--sorry to clog the mailling list--but what are the rules
> concerning copyright with this sort of thing? Would all works have to be
> public domain/approved by the copyright holder? I assume the answer is yes,
> but I don't want to take any chances. I'm from the US if that makes any
> difference.
>
>
>
> -----
> Ryan McClure
>
> Luna Music Engraving
> www.lunamusicengraving.com
> --
> View this message in context: 
> http://lilypond.1069038.n5.nabble.com/engraving-comparisons-and-other-promotional-materials-tp155133p155137.html
> Sent from the User mailing list archive at Nabble.com.
>
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