The Optigan plays flexible sound disks, which look a bit like xrays, but have samples encoded on them as circular patterns. The resulting sound plays back with a unique, lo fi quality.
In addition to encoded sounds, the discs generally include chord accompaniment patterns and beats.
The new discs include:
Country Folk in 6/8:
Gamelesque is newly recorded, inspired by sounds of gamelan orchestras. The rest of the new sound discs are based on vintage Optigan recording master tapes.
Details are available at the Optigan.com site.