Developer Johan Eriksson has introduced Automatonism – a free software modular synthesizer, featuring 67 modules, dynamic preset management and advanced parameter mapping, all on an open source platform.
Automatonism runs in Pure Data, making it compatible with all major operating systems.
Eriksson has also released several tutorials, embedded below, that demonstrate how to get started:
How to make a subtractive synthesizer:
How to make a ‘West Coast’ synth patch:
Wording with clocks and rhythms:
Eriksson has also released an album of music, maked with Automatonism, that demonstrates its capabilities:
Details on Automatonism are available at the project site.