K: Cmaj T: 120 TS: 4/4 INST: Kick, Snare, Clap, Hi-Hats, Open Hats, Cymbals, Toms, Percussion, Synth Bass, Sub Bass, Layered Bass, 808 Bass, Electric Bass, Digital Piano, Keys, Chord Stabs, Acoustic Piano, Electric Piano, Clean Guitar, Palm-Muted Guitar, Chorus Guitar, Rhythm Guitar, Electric Guitar (sustained), Acoustic Guitar, Synth Pads, Synth Leads, Arps, Strings, Brass Mood: Happy, energetic, anthemic, emotionally direct — bright and supportive of a female lead vocal Structure: Intro → Verse 1 → Pre‑Chorus → Chorus 1 → Instrumental Break → Verse 2 → Pre‑Chorus → Chorus 2 → Bridge → Instrumental Break → Final Chorus (full) → Outro (overall: Verse–PreChorus–Chorus with Bridge and instrumental interludes) Summary: This specification is a late‑2010s/early‑2020s mainstream teen‑pop instrumental in C major at 120 BPM, 4/4 — bright, commercial, and vocal-forward. The full 29‑stem map provides clear functional separation (drums, multiple bass layers, keys/pianos, guitars, synths, strings/brass) so each track occupies its own frequency and rhythmic role. Arrangement follows a clear energy curve (sparse intro/verses, building pre‑choruses, full choruses, a vulnerable bridge, and a maximal final chorus) with intentional breathing space for a female lead vocal. Performance and expression directives (micro‑timing offsets, velocity variation, CC11/CC1/CC74/CC7/CC10 movement, light swing on hats, evolving drum fills, pitch micro‑variation on sustains) will ensure a human, non‑quantized feel and continuous motion across the 29 MIDI tracks. Harmonic logic (diatonic C major, clear tonic/dominant relationships, smooth voice leading, passing tones in bass) and phrase structure (2/4/8‑bar arcs, call‑and‑response between parts) are designed to create a strong commercial hook and a professional, mix‑ready instrumental ready for vocal tracking.

Model: gpt-5-mini