Arpeggio Drone is based on the example project of the same name that comes with Audio Mulch.  I used it to learn the arpeggiator, so I made a copy of the example project and tweaked the parameters quite a bit.  Then I added modular sound into the mix by including the Modcan VCDO, slowly modulated by a MOTM-320 LFO.  I simply tuned the VCDO to match the pitch of the Mulch oscillators.  And I added the Blacet StonZ Phaser, as well.  This recording was actually performed by manually stopping and starting the arpeggiator clock in Mulch in real time.