New audio routing sub-patch.

Distortion derived from coefficient modulated all-pass filter.

Chords_1 has TG effect pre distortion. This makes it sound more noisy and less choppy as in Chords_2 and Chords_3 TG comes post dist making it more choppy and rhythmic.

Added LPF on all 3 Chords with logarithmic cut-off control, and basic mix reverb with freeze button.