Free practice tool from Rotem

Hold one key and hear every note you play against it

Pick a key, start the cello and strings, and play over them. Move up a fourth when you're ready, or let it move on its own.

Screenshot of Cycle of Fourths Drone
Cycle of Fourths Drone, as it looks when you open it.

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What it does

  • Choose any of the twelve keys.
  • Turn the fifth, the octave and the string shimmer on or off.
  • Tap "up a fourth" to move through the cycle yourself.
  • Or set auto-advance to change key every 2, 4 or 8 bars at the tempo you set.

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Who made this

Rotem Sivan is a New York jazz guitarist and educator. He's from Israel and studied at The New School.

If you want to go further

If your hand goes hunting for a new box every time the key moves, that's what Unlocking the Fretboard is for. It maps the neck as one connected picture, in C major and A minor, so you can find your way around mid-solo.

See Unlocking the Fretboard