![1970 MATTEL Optigan Program Disc: Waltz Time (3/4) [70016] @keyboardresource](https://i.ytimg.com/vi/S_kx5y7Tv6E/sddefault.jpg)
Uploaded May 2012 | Updated September 2026, 1 week ago
Sounds from Optigan Music Maker. Get the Optigan app to hear better samples and it works just like the real thing. You can even play the virtual discs upside-down (backwards). Or, get them at optigan.com.
Sample DVD can be purchased at optigan.com.
Sounds from Optigan Music Maker. Get the Optigan app to hear better samples and it works just like the real thing. You can even play the virtual discs upside-down (backwards). Or, get them at optigan.com.
Sample DVD can be purchased at optigan.com.
![1970 MATTEL Optigan Program Disc: Waltz Time (3/4) [70016]](https://i.ytimg.com/vi/S_kx5y7Tv6E/mqdefault.jpg "1970 MATTEL Optigan Program Disc: Waltz Time (3/4) [70016]
Sounds from Optigan Music Maker. Get the Optigan app to hear better samples and it works just like the real thing. You can even play the virtual discs upside-down (backwards). Or, get them at optigan.com.
Sample DVD can be purchased at optigan.com.")
