# Ruins Oldmusic — salon jazz combo, Ab 3/4 (take B, fully arranged)

`ruins-oldmusic-v3b` — levels: `calm.mp3` · `activity1.mp3` · `activity2.mp3` · `danger1.mp3` · `danger2.mp3`

Take B leans hard into the jazz assignment: a fully-arranged diegetic salon combo (felt-piano comping, walking upright bass, brushed-snare + ride swing, a muted-brass reed lead) playing the courtly Ab-major 3/4 dance — a real band, not a pad with a tune on top. Chromaticism is the deliberate, named jazz color invited by the concept: ii–V motion (Bbm7→Eb7→Abmaj7), a chromatic passing diminished (Adim7) wedged between I and ii, and 7th/9th comping tones. Calm is the band at rest — felt-piano chords at quarter-light, upright bass on beat one, warm pad holding a I–vi–ii–V turnaround. In ACTIVITY, L1 is the melody and its first voice (muted-brass courtly lead + celesta HEARTH second strain, each shadowed by a soft felt-piano echo); L2 adds entirely new material — a WALKING upright bass (quarter-note steps with chromatic approach tones, distinct from the bed's beat-one bass) plus brushed-snare + ride swing — the rhythm section arriving, not the lead louder. In DANGER (quickened to 94 BPM), L1 is the first signs (a wary felt-piano tremor leaning on the chromatic Adim7 with a beat-3 limp boom); L2 is collapse — scattered stone-crack ticks across the barline and a second boom, the harmony thickening into diminished/whole-tone anxiety. Rockfall, not horror.