Bitwig 8-Track | u-he Beatzille | Ubuntu Studio
Plogue Alter Ego + 3 Soundbänke
kawaChord2 free
Handy for quickly entering chords
ISOL8
Mix monitoring tool that divides the frequency range into 5 bands
Throb
Open source plugin that generates clock/reset signals synchronised with the host tempo
VCV Rack
Open-source virtual modular system
MfreeEffectsBundle
amazing effect bundle
Protoplug
missing link for Lua scripts
Bass Grinder Free
control the bass section