ihatemusic

I saw an interesting performance a while ago, where a horn player had pulled out the valve slides, and inserted lengths of hose in their place. As well as the pitch effect of the different lengths, the tubes had different timbres, and with them pointing in different directions, there was a spatial e...

Trevor Wishart, On Sonic Art A lot of the discussion is based on a contrast between traditional music theory and Wishart's own (slightly didactic) approach, but there's some valuable concepts in there. Might be less of a revelation if you're not coming to it from a conventional composing background,...

There's a contact link on his Audio Foundation page:
http://www.audiofoundation.org.nz/artis ... russell/74

Might be worth a try.