d4 bass: octersubbus replaces lpfbus on ^53 (user preference) d5 arp: 16-bar cycle with A3/C4 variations (demucs melody arc) Bb/F anchor bars + A3/F4 + A3/C4 + Eb/Gb variations d7 cello: tighter room (0.25), shorter legato (1.2), rhythmic answer phrase on beat 3, mirrors bass V chord one octave up
