This DEMO soundset contains 20 patches.
The complete and FREE soundset contains 83 patches with machines, random sounds, percussions and keyboads.
It is divided un four sections: Machines with 20 patches. Sounds with 27 patches. Percussions with 19 patches. Keys with 17 patches.
[Couldn't fetch content for http://soundcloud.com/complex_sound/aalto-demo - Is the URL correct?]