# Chord Progression Maker > Build and edit chord progressions in your browser, hear reference playback, and export the notes as MIDI or CSV. Chord Progression Maker is a browser tool for sketching harmony. Choose a key, scale and progression pattern, adjust individual chords, and compare variations. The tool displays chord names, notes and Roman numerals, with synthesized playback and MIDI or CSV export. It uses defined musical patterns rather than an AI composition model. It provides a starting point for a musical idea; the melody, rhythm, arrangement and performance remain the musician's choices. Songwriters, music students and producers exploring chord sequences. Reference playback uses a synthetic tone; this is not a finished-song generator or recording-analysis service. ## Website - [Chord Progression Maker](https://chordprogressionmaker.com/): Main browser tool. ## Information - [About](https://chordprogressionmaker.com/about/): About information published on this website. - [Privacy](https://chordprogressionmaker.com/privacy-policy/): Privacy information published on this website. - [Contact](https://chordprogressionmaker.com/contact/): Contact information published on this website.