Here are some Linux Audio packages compiled for Ubuntu Focal / Mint 20

https://disk.yandex.com/d/p8I8A0TIiJBJkA

Current contents
Emu0404 Alsa Firmware
Linux Sampler 2.2.0
Calf 0.90.3
Guitarix LV2 Plugins
Hydrogen 1.1.0
RakarrackPlus 1.1.0
Steinberg VST2 SDKs

Ubuntu Studio Audio Packages
jack_mixer
qjackctl
raysession
...and more

Karaoke
openkj

Somascape MIDI Spec

MIDI Tools
sysexxer-ng
simplesysexxer