It has independent controls for each voice, 12 modulation sequencers and the ability to use any of the voices as a mod source. It is capable of being played using MIDI or you can trigger all four voices at the push of a button. Currently there are two versions available, a more stable v1 branch and a flakier, but more feature pack v2.
Additionally, a large collection of extra content for Oi, Grandad! is available to purchase. It includes:
- Over 3gb of loops, stems drones and more
- 60+ unique presets
- Brings grandad back to life