chord-pro

# Chord Pro Generate or refine chord progressions with proper voicing. Music-theory grounded — no random Reddit-tier chord stacks. ## Workflow ### 1. Ask if needed Required: **key + mode**, **mood/genre**, **target instrument**. Optional: length (default 4 chords), tempo (for rhythmic feel). If two are missing, ask in one sentence: > *"What key and what mood?"* ### 2. Choose progression by genre/mood | Mood/Genre | Reliable progressions (in C / Cm) | | --- | --- | | Sad / cinematic | Cm – Ab – Eb – Bb (i-VI-III-VII), or Cm – Gm/Bb – Ab – Eb | | Hopeful / pop | C – G – Am – F (I-V-vi-IV), or C – Am – F – G | | Tension | Cm – F – Cm – G7 (i-iv-i-V), or Cm – Bb – Ab – G | | Neo-soul / R&B | Cmaj7 – Em7 – Am7 – Dm7 (I7-iii7-vi7-ii7), or use modal interchange | | Lo-fi / chill | Cmaj7 – Fmaj7 – Bb7 – Eb7 (mixolydian feel), or use ii-V-I in jazz extensions | | Cinematic build | Cm – Ab – Fm – G (Aeolian + V) | | EDM uplifting | Am – F – C – G (vi-IV-I-V — the "Axis") | | Modal/dorian | Cm – F – Gm – Cm (i-IV-v-i in dorian) | ### 3. Voice properly For each chord, place voices according to instrument: #### Piano (most common) - LH: Root + 5th (or root + octave) below middle C - RH: 3rd + 7th (or 3rd + 5th + 9th for color) above middle C - No closed-position triads in the same octave as the bass #### String ensemble - Cello: root (one octave below middle C) - Viola: 5th (or 3rd in inversion) - Vln 2: 3rd or 7th (depending on chord quality) - Vln 1: highest color tone (9, 11...