-- card: 39679 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 3551
-- name: 


-- part contents for background part 3
----- text -----
sub-oscillator

-- part contents for background part 4
----- text -----
alternative oscillator output with a frequency of one half of the oscillator's true tuning (one octave lower in pitch).