PM_E‑1 PolyMeter Editor LIVE SYNC β

Space play · T tap · ←→ tempo · ↑↓ cue · ⏎ commit · N/P step · A add · ? help

120

⏱ 0:00

Now loaded

Free play

Tempo (BPM) 120

Master Volume 70%

Gap / mute trainer

Play Mute bars

Tempo ramp

from BPM BPM every bars

Timersrun while playing

Elapsed (stopwatch)

Countdown

Bars 0 = manual

Meter lanes

Each beat splits into subdivision pads — click a pad to cycle accent → normal → ghost → mute. Pick a swing subdivision for a triplet feel.

Keyboard shortcuts

`Space`	Play / stop (works everywhere except while typing in a text field)
`T`	Tap tempo
`←` `→`	Tempo ±1 BPM (`⇧` ±10)
`A`	Add meter lane
`↑` `↓` `Home` `End`	Move the cue cursor (crosses set lists)
`PgUp` `PgDn`	Cue the previous / next set list
`Enter`	Commit the cued item — switches on the next bar (smooth)
`⇧Enter`	Commit now — switches on the next beat (rude)
`N` / `P`	Load next / previous immediately (rude quick-step)
`⌥↑` `⌥↓`	Reorder the cued item
`1`–`9`	Enable / silence lane 1–9
`?`	This help
`Esc`	Close tray / help · cancel an armed switch

Source: codeberg.org/VARASYS/metronome

Your set lists, items and practice log live only in this browser (localStorage) — nothing is uploaded. To move or share them, use the set-list ⋯ menu: Share set-list link copies a link encoding the whole set list (open it elsewhere to import a copy); Share settings link shares just the loaded item; Export all / Import file back up everything as a JSON file.

This is a single-page app — save this page (Ctrl/⌘+S) and open the file to run it fully offline, no server needed. One catch when running from a local file://: it won't auto-save your set list between sessions, so export a backup (set-list ⋯ menu → Export all) to keep your work.