Chord progression builder with a band to sing over

Updated November 10, 2026. How we check these numbers

Quick answer: open the Jam tab, tap Presets to pick a progression (Pop anthem, Highway, 12-bar blues and more) or Custom to build your own, choose a key, and press Play. A band loops it so you can sing over it straight away.

Presets that sound good in every key

The library groups progressions the way songwriters think about them: Pop, Ballad, Folk & Country, Rock, Blues, Soul & Gospel, Minor & Moody, Jazz-ish and Singer-Songwriter. Each one is written in roman numerals, so I–V–vi–IV is the same progression in G as in E♭. The free version includes a starter set; Pro opens the whole library.

Build your own and ask “what’s next?”

The builder shows the seven chords of your key, a few borrowed colours and common sevenths. Below your progression, What’s next? suggests the chords that usually follow the last one you picked. It’s the quickest way out of a loop you’ve played too many times.

Capo shapes for guitar

Set a capo and Porchtone lists the shapes to play, so a song in B♭ can be played with G shapes on the third fret. You can also try progressions in the free progression player or look up the chords in every key.

Frequently asked questions

Can I make my own progression?

Yes. Tap chords from the key to build one, give any chord two or four bars, and remove chords you don't want. Borrowed chords like ♭VII and the minor iv are there too.

Does it change key?

Every progression is stored as roman numerals, so changing the key moves every chord at once. Set a capo and Porchtone shows which shapes to play.