> "no effect from adjustVol..."
> |snd |
> snd := FMSound organ1.
> snd
> 	duration: 5;
> 	play.
> 1 second wait.
> snd adjustVolumeTo: 1.0 overMSecs: 500.
> 1 second wait.
> FMSound brass1
> 	play.
> 	
> 1 second wait.
> snd stopGracefully.

There is no effect because amplitude change is supposed to be driven by 
an AmplitudeEnvelope (these are the ones that send 
#adjustVolumeTo:overMSecs:).

Unfortunately, there is already one such envelope active in FMSound 
organ1, which uses amplitude modulation, so a second one would be 
ignored anyway.

What we need is a way to combine several layers of amplitude control; we 
could start by supporting several AmplitudeEnvelopes in a single 
AbstractSound.

Stef