Chord Progression Manager is the fastest way to build, play, and save chord progressions on iPhone, putting a live, playable chord lane right in your pocket. — BUILD YOUR PROGRESSION — Pick a root note, chord type, and tension, then add it to your progression with a single tap. Reorder or delete chords freely. Use the voicing editor to fine-tune individual notes on an interactive piano roll and craft exactly the sound you want. — PLAY IT BACK — Hear your progression immediately with the built-in synthesizer. Adjust tempo and transpose the entire progression up or down by semitone — no need to rebuild from scratch when you change keys. — SAVE & ORGANIZE — Save as many progressions as you like and keep your favorites just a tap away. Reopen any saved progression into the editor and keep building. — AI MUSIC ASSISTANT — Stuck on what chord comes next? Ask the built-in AI chat. Get suggestions for chord substitutions, borrowed chords, reharmonization ideas, and more — powered by any OpenAI-compatible endpoint you configure. Chord Progression Manager is free to download and use. AI chat features require your own LLM API key.