Install so-synth-lv2 by entering the following commands in the terminal:
sudo apt update sudo apt install so-synth-lv2
Description:
Set of synthesizers for the LV2 plugin format
This package is an unofficial port of a set of synthesizers written by 50m30n3 to the LV2 plugin format. In order to use it, you need a host for LV2 plugins such as Ardour, Qtractor, or Ingen. This package contains three synthesizers, a feedback drone synthesizer, a piano synthesizer, and a bassline synthesizer.
Homepage: http://d00m.org/~someone/
Version: 1.4-2
Section: universe/sound