Amber Hour

A solo piano jazz ballad for song mode — Eb major, 96 BPM, real ii-V-I harmony including a genuine key change (the bridge pivots to Gb major via a Db7 secondary dominant, and back via Bb7 — the only modulation anywhere in this collection). The collection's first score-wide tempo curve: every section breathes into tempo over its first 6 beats and eases out over its last 6, holding a swung 96 BPM in between. Prelude explores fragments of the tune out of tempo, very sparse; Head states a full 32-bar AABA chorus plainly; Reprise is a real reharmonized 2nd chorus — tritone subs on the dominants (Bb7→E7, Db7→G7), genuinely new melodic content rather than the same line louder, brushes joining for the first time, and the piece's single highest note in the bridge; Coda quotes the opening motif quietly and fades. All three roles voiced with piano-family samples only (piano / piano-bass / piano-pad) — one instrument's timbre, split by role.