The Random Chord Generator

Three buttons

• Roll Again — generates a fresh set of random diatonic chords (chords that belong to a key, so the result always makes musical sense). Keep rolling until something catches your ear.
• ▶ Play / stop — cycles through the current chords on the synth so you hear the progression, not just read it.
• Rotate — rotates the voicing of the current chords (same chords, notes rearranged), so you can find a smoother or more interesting version of the same progression.

Function cards

Each chord appears as a function card — the chord name and its Roman-numeral role: Eb = IV, Bb = I, Gm = vi. So a random roll isn’t a mystery; you see why it works — “oh, that’s a I–vi–IV.” Alongside the cards, the on-screen keyboard and a guitar tab show you how to actually play each chord.

That pairing is the point: it’s a generator that doubles as a flashcard. Roll a progression you like, read off its functions, and you’ve learned a little more about what makes progressions work — the same vocabulary the wheel and the guidebook teach.

What to Practice

• Roll a few progressions and Play each. When one grabs you, read its function cards — what’s the pattern (I–V–vi–IV? ii–V–I)?
• Hit Rotate on a progression you like and listen to how the voicing changes the feel without changing the chords.
• Take a rolled progression to an instrument using the keyboard and guitar tab, and try writing over it.