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Airchain

FM radio airchain emulation — AGC, four-band squash, emphasis, clipper and transmission artifacts behind one big SQUASH knob.

VST3 / AUmacOS14 presets
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Help Center · BPM Forge

Keep a setlist of tempos

Save every song with its BPM, time signature and a note, lock the list for the show, start songs with a count-in, and back it up as JSON.

Open BPM Forge

On this page
  1. Add songs
  2. Start a song
  3. Edit or remove a song
  4. Gig view
  5. Foot pedals, keys and MIDI
  6. Import from SetlistForge
  7. Several setlists
  8. Export and import
  9. Where it is stored

A setlist in BPM Forge is a list of songs with their tempos — not charts or lyrics (that is SetlistForge's job). It exists so the top of every song starts at the right speed, every night, on whoever's phone is in the room.

Add songs

  1. On the Tapper tab, open the Setlist panel (the ▾ toggle).
  2. Type a Song name, the BPM, pick the time signature pill and add an optional Note (up to 80 characters — "half-time chorus", "count-in 2 bars").
  3. Press + Add. The song appears in the list.

If you have just tapped a tempo, it is already in the BPM field.

Start a song

Tap a song row. Its tempo and time signature load — nothing plays yet, so you can load the next song while the band is still talking. With Count-in set to 1, 2 or 4 bars the metronome button reads ▶ Count in 2 bars: press it and you are counted in, then it keeps clicking. With Count-in Off it simply starts.

Edit or remove a song

Tap a song to load it: its row shows a ✎ pencil, ↑ / ↓ and ×. Press ✎, change the name, BPM, time signature or note, and Save — or Cancel (Esc) to leave it as it was. ↑ and ↓ move the song up or down the list; × removes it, with Undo for a few seconds afterwards. The buttons disappear while the list is locked.

Gig view

⤢ Gig view (next to Count-in) opens one big screen for the show: the song, its tempo and time signature, your note, what comes next, and three big buttons — ◀ Prev, ▶ (count in / stop) and Next ▶. Tick Load the next song when I stop and pressing Stop at the end of a song loads the next one, ready to count in.

Foot pedals, keys and MIDI

  • Page Down / → loads the next song, Page Up / ← the previous one — which is what page-turner foot pedals (AirTurn and similar) send. With a two-button pedal you can make the second button start and stop instead: ⚙ Settings → Pedal & arrow keys → Next song / start–stop.
  • In the gig view, Space starts and stops the click.
  • ⚙ Settings → MIDI (Chrome, Edge, Firefox): Connect MIDI…, pick the input, press Learn next to Tap, Start / stop, Next song or Previous song and hit the pad, key or footswitch you want. Pick an output and switch on Send MIDI clock to drive lights, a drum machine or a DAW from the metronome (24 pulses per beat, with Start and Stop). Safari has no Web MIDI.

Import from SetlistForge

From SetlistForge… (next to Export JSON) lists your SetlistForge setlists. Pick one and it arrives here as a new setlist in the same running order, with each song's BPM and note. Songs without a BPM in SetlistForge are skipped (the message says how many), breaks are left out, and songs come in as 4/4 — set any other time signature with ✎.

Several setlists

  • + creates a new, named setlist; the dropdown switches between them.
  • 🗑 deletes the current setlist.
  • 🔓 / 🔒 locks the list for the show: no adding, editing or deleting until you unlock it (you are asked to confirm the unlock).

Export and import

Export JSON downloads the current setlist as a file — a backup, or something to send to the drummer. Import JSON loads one back in. Imported songs are validated: bad tempos and fields are cleaned up rather than breaking the list.

Where it is stored

Setlists are saved in the browser as you go and, when you are signed in, with your account — build the list at home, open it on the tablet at the gig. Sync is per account, not per device; see Account sync.

Songs in 6/8, 7/8 and other compound metres click with the right subdivision — the bottom number of the time signature drives the click rate, so 6/8 is twice as fast as 6/4 at the same BPM.

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