Install zynaddsubfx-data by entering the following commands in the terminal:
sudo apt update sudo apt install zynaddsubfx-data
Description:
Realtime software synthesizer for Linux (data)
A real-time software synthesizer for Linux and Windows with many features, including polyphony, multi-timbral and microtonal capabilities. It includes randomness of some parameters, which makes warm sounds, like analogue synthesizers. It has system/insertion effects too, and much more. . This package contains the architecture-independent data files.
Homepage: https://zynaddsubfx.sourceforge.io
Version: 3.0.3-1
Section: universe/sound