Hi Peter

> A) Sine on Sine FM:
>
> http://www.buzzclick-music.com/266_sample1.mp3
>
> B) More FM:
>
> http://www.buzzclick-music.com/vco2.mp3

Nice examples! What kind of modulation did you apply Sounds like a ramp
or inverted AD envelope (attack=0, decay=quite fast) modulates the
FM-Amount. Or is there something more

Florian