Hemiola

Coming soon

Plug in. Play it. Everyone sees it land.

Hemiola is a music notation editor that runs in your browser. Bring a keyboard or a MIDI guitar and put the part in with your hands. Bring your band and write the score together, in the same window, at the same time.

Made by Get Out and Jam, LLC.

Write together

A score is a room. Bring the band.

Open the score and the others are already in it. Their carets move along the staff with their names attached. Edits land the moment they happen. Nobody saves, nobody emails a file, and nobody ever opens arrangement-final-FINAL-v3 again.

Play it in

Your hands already know the part.

Plug a keyboard, a pad controller or a MIDI guitar into the browser. Hemiola listens, and the notation follows. Not a piano roll you clean up afterwards: notes, on a staff, spelled the way the key wants them.

Getting it in

  • Step it in

    Hold a chord and it lands as a chord. The spelling follows the key in force, so sharps come out sharp and flats come out flat, and a transposing part is written where the player reads it. Hit a pad and it lands as a hit on the kit's own map.

  • Record to the click

    Count in, or let your first note start the transport. Play the passage. The take stages as rows you read before anything touches the score, so you accept it, take it again, or bin it. Accepting is one undo step for the whole thing.

  • No click? Tap the beat.

    Set the beat to come from your taps, count yourself in, and play free. The first tap opens the take, a six-eight bar counts in dotted quarters, and a tap you drop gets filled in and told to you.

  • Keep what you just played

    The last three minutes are still in memory whether you armed anything or not. Play something good by accident, ask for it back, and it stages from the bar your caret is on.

What it hears

  • How hard, how short, how swung

    Velocity becomes the dynamic mark, written where the level changes rather than on every note. A note you cut short becomes a staccato. A take you played with a swing gets straightened onto the grid and marked "Swing" so the feel survives the transcription.

  • Two hands, two staves

    Set a split point and the notes underneath it go to the lower staff. Beats stay visible: a note that runs across one is split and tied there, so the bar reads the way a player counts it.

  • Guitar players, it reads your fingers

    Bends, slides, hammer-ons and pull-offs come off the performance itself. The string you played on becomes the string on the tab. Latency is measured per device, and per string on a MIDI guitar, so a low E lands on the beat with the high E.

  • Takes stay with the score

    Every take you accept is kept alongside the music. Play one back exactly as you performed it, re-fit it under different settings without playing it again, or delete it. Your band can hear it too.

And when you want to be told the truth

  • Practice mode listens back

    Play along with the score and every note is judged as you go: in time, close, early, late, wrong note, missed, and by how many milliseconds. A pass ends with a percentage, a medal and your longest clean run.

  • It waits for you, then pushes you

    Ask the score to wait and the cursor holds until you actually play the note. Turn on the step-up and three clean passes in a row raise the speed. Passes are kept, so you can watch the number move.

See it

Five frames from the build.

Real screens, not drawings. Drag or scroll sideways for the rest, and click any one to see it full size.

The Hemiola editor. A nine-part score is engraved on a page in the middle, the instrument list and note palette sit on the left, the inspector on the right, and a transport with tempo and time signature runs across the top.
The editor, with nine parts on one page. Click to enlarge
A shared score in the Hemiola editor. Four collaborator avatars sit in the toolbar, a bandmate's caret is labelled with their name on the first bar of the guitar staff with their selection highlighted around it, and the status bar reads Live.
A bandmate’s caret, named and live. Click to enlarge
The Comments panel in the Hemiola editor, showing a thread anchored to Bar 2 with four replies debating whether a rest should be a crotchet, a Resolve control, and a control to attach a recording.
A thread pinned to bar two. Click to enlarge
The Versions panel in the Hemiola editor, listing named versions such as Coda tightened and Before the bridge rewrite, each with the date it was saved, the person who saved it, and a Restore control.
Named versions, dated, with Restore. Click to enlarge
The Mixer in the Hemiola editor, with mute, solo, volume and pan controls for each of the nine parts of a score, listed beside the engraved page.
The mixer, one strip per part. Click to enlarge

The rest of the desk

Everything between the idea and the audience.

The unglamorous half, and it all works today.

Coming soon — hemiola.io

We are in the home stretch.

hello (at) hemiola.io

Questions, bands, teachers, press, anything. We will answer, and we will not sell your email address.