# ENYO Metronome

> A free metronome for the browser, iPhone, iPad, Mac, Apple Watch and Apple Vision Pro, by ENYO Technologies. The web version runs at https://metronome.enyotechnologies.com/app/: no account needed, no ads, works offline, installs as an app, and opens already set to any tempo, time signature, subdivision and accents from its address. The site also lists the tempo, time signature and feel of 991 well-known songs, each on its own page with a click at that tempo.

- The web metronome is free, with no ads and no account needed. The App Store app is free too, with optional tips.
- Timing is scheduled on the Web Audio clock, so the click does not drift.
- Browsers only allow sound after a person interacts with the page: a link sets the metronome up but never starts it. A person (or an agent acting in a real browser) presses Start, or the Space bar.
- Song tempos are the ones the app uses: the commonly cited tempo of each song, not a measurement of one particular recording. Live versions vary.
- The web app keeps setlists, songs, the practice journal and settings in the browser. An optional free ENYO Sync account (email, Apple or Google) keeps setlists, songs and the journal the same on every device signed in to it. It sends anonymous usage counts only if the person agrees, and never a song, a setlist's name, a tempo or anything typed. The song pages and About send one cookieless visit count each, never which song.
- It installs from the browser (Install App in the sidebar, Install on a phone, or the browser's own menu) and then opens in its own window or from the Home Screen.

## Open the metronome with a link

Add these parameters to https://metronome.enyotechnologies.com/app/ to open the metronome already set up. They apply in this order: `song`, then `ts`, then the rest, then `open`. Every value is checked against what the app offers (numbers are kept in range, a value between two choices takes the nearer one, anything not understood is ignored), and the parameters are then removed from the address. Other parameters (`utm_*`, `ref`) are left alone.

- `song`: a song from the list, by the slug of its page (`song=seven-nation-army-the-white-stripes`) or by its name (`song=Seven Nation Army — The White Stripes`); sets its tempo, time signature and feel, and the other parameters then change it
- `bpm`: the tempo, 10 to 400, one decimal allowed (`bpm=121.8`)
- `ts`: the time signature, beats/note value: 1 to 32 beats over 1, 2, 4, 8, 16 or 32 (`ts=7/8`; also `7-8`, `c`, `cut`). A new bar starts with its first beat accented
- `sub`: clicks in each beat: `quarter`, `eighths`, `triplets`, `sixteenths`, `quintuplets`, `sextuplets`, `septuplets`, `32nds`, or 1 to 8
- `accents`: one letter per beat: `A` accent, `n` normal, `s` soft, `x` silent; as many letters as the bar has beats (`ts=7/8&accents=AnAnAnn` is 7/8 grouped 2+2+3)
- `poly`: a polyrhythm, a pulse of 2, 3, 4, 5 or 7 across the bar (`poly=3`), or against part of it (`poly=3:2` in 4/4 plays 3 against 2, twice a bar); `off` to stop. A pulse that shares a factor with the beats it is set against (2 against 4) is not a polyrhythm and is ignored
- `poly2`: a second pulse over the first, by the same rules, neither equal to `poly` nor dividing it
- `ramp`, `every`, `to`: the tempo trainer: `ramp` BPM faster (1, 2, 5 or 10; 0 off) every `every` bars (1, 2, 4, 8 or 16) up to `to` BPM (20 to 300)
- `play`, `mute`: the rhythm trainer: `play` bars with the click (1, 2, 4 or 8), then `mute` silent bars (1, 2 or 4; 0 off)
- `countin`: count-in bars, 0, 1 or 2
- `timer`: a practice timer of so many minutes (1 to 1439, or `1h`) that starts with the click; `stopwatch`, or `off`
- `sound`: `click` or `pulse`
- `start`: shows a reminder to press Start (the sound still waits for a press)
- `open`: what to show: `stage` (Stage Mode, the full-window player; also `metronome`), `polyrhythm`, `tempo-trainer`, `rhythm-trainer`, `timer`, `tuner`, `setlists`, `library`, `search` (with `q=` for the search text) or `journal`. The same names as the native app's `enyometronome://` links

Examples:

- [120 BPM in 4/4](https://metronome.enyotechnologies.com/app/?bpm=120&ts=4/4): the default
- [96 BPM in 7/8, grouped 2+2+3](https://metronome.enyotechnologies.com/app/?bpm=96&ts=7/8&sub=eighths&accents=AnAnAnn): an odd meter
- [Slow triplets](https://metronome.enyotechnologies.com/app/?bpm=60&ts=4/4&sub=triplets): 60 BPM, three clicks a beat
- [3 against 2 at 80 BPM](https://metronome.enyotechnologies.com/app/?bpm=80&ts=2/4&poly=3): a polyrhythm
- [Tempo trainer from 90 to 120 BPM](https://metronome.enyotechnologies.com/app/?bpm=90&ramp=2&every=4&to=120): 2 BPM faster every 4 bars
- [Rhythm trainer](https://metronome.enyotechnologies.com/app/?bpm=100&play=2&mute=2): 2 bars with the click, 2 bars silent
- [A 20-minute practice timer](https://metronome.enyotechnologies.com/app/?bpm=80&timer=20): counts down while the click plays
- [Seven Nation Army](https://metronome.enyotechnologies.com/app/?song=seven-nation-army-the-white-stripes): a song's tempo, time signature and feel
- [Schism in Stage Mode](https://metronome.enyotechnologies.com/app/?song=schism-tool&open=stage): a song in 5, full window
- [Setlists](https://metronome.enyotechnologies.com/app/?open=setlists): straight to the setlists
- [Search for a song](https://metronome.enyotechnologies.com/app/?open=search&q=queen): the app's search, filled in

The web app also has real paths: https://metronome.enyotechnologies.com/app/stage (Stage Mode), https://metronome.enyotechnologies.com/app/tuner, https://metronome.enyotechnologies.com/app/polyrhythm, https://metronome.enyotechnologies.com/app/library/setlists, https://metronome.enyotechnologies.com/app/search?q=beatles and https://metronome.enyotechnologies.com/app/settings. In browsers with WebMCP, the app also offers tools to agents: set_metronome (the parameters above), find_song_tempo, load_song, start_metronome, stop_metronome and get_metronome_state.

## Practice tools

Each tool has its own page, which opens the web app with that tool ready:

- [Online tuner](https://metronome.enyotechnologies.com/tuner/): Tune a guitar, bass, ukulele, violin or any instrument in your browser: a free chromatic tuner that listens through your microphone, with a cent gauge.
- [Tap tempo](https://metronome.enyotechnologies.com/tap-tempo/): Tap along to a song to find its tempo in beats per minute. Free tap tempo in your browser: tap a key or a button and the metronome is set to that BPM at once.
- [BPM finder](https://metronome.enyotechnologies.com/bpm-finder/): Play a song near your device and find its tempo: a free BPM finder that listens through your microphone for up to 15 seconds and sets the metronome to the beat.
- [Polyrhythm metronome](https://metronome.enyotechnologies.com/polyrhythm/): A free polyrhythm metronome in your browser: 3 against 2, 3 against 4, 5 against 4, 7 against 4 and more, with up to two pulses over the beat.
- [Tempo trainer](https://metronome.enyotechnologies.com/tempo-trainer/): Build speed step by step: a free speed trainer metronome that raises the tempo by 1 to 10 BPM every 1 to 16 bars and holds it at your target tempo.
- [Rhythm trainer](https://metronome.enyotechnologies.com/rhythm-trainer/): Test your inner clock: a free gap click metronome that plays 1 to 8 bars, then goes silent for 1 to 4 while you keep time, so you hear if you rushed.
- [Practice timer](https://metronome.enyotechnologies.com/practice-timer/): Time your practice: a free countdown or stopwatch that runs with the metronome, pauses when the click stops, and can stop the click when time is up.

## In other languages

The same metronome opens in its own language at https://metronome.enyotechnologies.com/de/ (de), https://metronome.enyotechnologies.com/hu/ (hu), https://metronome.enyotechnologies.com/es/ (es), https://metronome.enyotechnologies.com/fr/ (fr), https://metronome.enyotechnologies.com/it/ (it), https://metronome.enyotechnologies.com/nl/ (nl), https://metronome.enyotechnologies.com/pl/ (pl), https://metronome.enyotechnologies.com/pt-br/ (pt-BR), https://metronome.enyotechnologies.com/sv/ (sv), https://metronome.enyotechnologies.com/da/ (da), https://metronome.enyotechnologies.com/tr/ (tr), https://metronome.enyotechnologies.com/ar/ (ar), https://metronome.enyotechnologies.com/ja/ (ja), https://metronome.enyotechnologies.com/ko/ (ko), https://metronome.enyotechnologies.com/zh-hans/ (zh-Hans), https://metronome.enyotechnologies.com/zh-hant/ (zh-Hant). The link parameters above work there too (for example https://metronome.enyotechnologies.com/de/?bpm=96&ts=7/8). The song pages are in English.

## Song tempos

- [All 991 songs](https://metronome.enyotechnologies.com/songs/): title, artist, BPM, time signature and feel, searchable (`https://metronome.enyotechnologies.com/songs/?q=queen` opens it filtered)
- [Every song as plain text](https://metronome.enyotechnologies.com/llms-full.txt): the whole list in one file, with each song page's address
- [Songs by tempo](https://metronome.enyotechnologies.com/songs/tempo/): five tempo ranges, and a page for each tempo five or more songs share
- [Songs not in 4/4](https://metronome.enyotechnologies.com/songs/time-signature/): 3/4, 6/8 feels and odd meters
- [Songs by artist](https://metronome.enyotechnologies.com/songs/artist/): artists with three or more songs
- [Seven Nation Army BPM](https://metronome.enyotechnologies.com/songs/seven-nation-army-the-white-stripes/): a song page: the tempo, the click, slower practice tempos

Each song page is at /songs/{slug}/, where the slug is the title and the artist in lower-case ASCII joined by hyphens (accents dropped, `&` as `and`, apostrophes removed): "Don't Fear the Reaper" by Blue Öyster Cult is `dont-fear-the-reaper-blue-oyster-cult`.

## The apps

- [ENYO Metronome on the App Store](https://apps.apple.com/app/id6800261733): iPhone, iPad, Mac, Apple Watch and Apple Vision Pro, with a practice journal that keeps itself, iCloud sync and the click with the screen locked
- [About ENYO Metronome](https://metronome.enyotechnologies.com/about/): features and platforms

## Optional

- [Support](https://metronome.enyotechnologies.com/support.html): contact and requirements
- [Privacy policy](https://metronome.enyotechnologies.com/privacy.html): what is and is not collected