[LAU] New music made with Linux: Proggy B.day 2 Q

[Al Thompson]

On 11/20/2012 10:37 AM, Ralf Mardorf wrote:
> On Tue, 20 Nov 2012 16:21:17 +0100, drew Roberts <zotz at 100jamz.com>
> wrote:
>> Julien,
>>
>> I hope you are not violating someone's copyright with that silence.
>
> John Cage once just moved a glass of water, being absolute silent, but
> there were reactions of the audience and this was the composition.
> Some bands, IIRC especially grind core bands have songs that are just
> some seconds of silence, but then it still belongs to the length.

So, if you "play" the same composition, but do it at a different tempo
so that the duration is different, are you violating the copyright?