This video shows all 128 capital tones present in the Roland SC-55. The Buzzwood General MIDI demos were used for this. This does not include the drum kits or variation tones (aka GS sounds) as I haven't found any demo MIDIs for those. Try comparing these sounds with Microsoft GS Wavetable Synth, and you'll see just how badly some of these got butchered. Feel free to use this video for whatever; no credits or permission to reuse needed.
![](https://i.ytimg.com/vi/VAhG-raL4gY/maxresdefault.jpg)