Help
Frequently Asked Questions
Answers to the most common questions about using Metrovy, technical issues and music practice.
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General
About Metrovy
Is Metrovy completely free?
Yes. Every feature — metronome, auto BPM increment, tuner, rhythm trainer, ear
training and the calculators — is free. No sign-up or account is required; the site is supported by the
ads on its pages.
Can I use it on my phone?
Yes, the site is fully mobile friendly. Make sure your phone's media volume is up.
For long practice sessions we recommend extending your screen timeout so the display doesn't turn
off.
Which browsers are supported?
Current versions of Chrome, Firefox, Edge, Safari and Opera are supported. Sound is
generated with the Web Audio API, so very old browser versions may not produce audio.
Can I use Metrovy offline?
Once the page has loaded, the metronome keeps working without an internet
connection; you only need a connection to open the page again.
How are my data and privacy protected?
Metrovy collects no personal data. Your theme, language and setlist preferences are
stored only in your device's browser; microphone audio is never recorded or sent to a server. See the
Privacy Policy for details.
Metronome
Using the Metronome
What is BPM?
BPM means "beats per minute". At 60 BPM a beat falls every second; at 120 BPM every
half second. See the
metronome and BPM guide for more.
How do I use Tap Tempo?
To find a song's tempo, tap the TAP button along with the song at least 3-4 times.
Metrovy averages your taps and calculates the BPM automatically.
What does auto BPM increment do?
It's for speed training: you set a start/target BPM and an increment amount, and the
metronome raises the tempo gradually by itself. We explain how to use it well in the
speed building guide.
When should I change the time signature?
Match it to the piece you're playing: pop/rock is mostly 4/4, waltzes 3/4, marches
2/4, and some ballads and folk tunes 6/8. The accent sound highlights the first beat of the bar so you
don't get lost within the measure.
What is subdivision for?
It lets you hear the space between beats too: with eighths you hear 2 clicks per
beat, with triplets 3. It makes keeping steady time much easier at slow tempos and develops your sense of
groove.
What tempo should I start practicing at?
Start at the tempo where you can play the piece with 95%+ accuracy; if you can't,
the tempo is too high. Increase in small steps (+2 to +5 BPM). For a ready-made plan, see the
daily practice routine.
Technical
Technical Issues
No sound — what should I check?
1) Check the volume slider on the page and your device's media volume. 2) Browsers
don't start audio without user interaction — make sure you pressed START. 3) Check that the tab isn't
muted (tab mute).
Why is the metronome sound delayed?
Bluetooth headphones add 100–300 ms of latency by nature; use wired headphones or
speakers for rhythm practice. Many open tabs and battery-saver mode can also affect timing.
The microphone isn't working — what should I do?
Check permissions via the microphone icon in the address bar and make sure the site
is loaded over HTTPS. Close other apps using the microphone. If the problem persists, try Chrome or
Firefox.
My saved setlist doesn't show on another device?
Setlist data is kept only in the browser of the device where it was saved
(localStorage); since there's no account system, there is no cross-device sync. This is a deliberate
design choice for your privacy.
Tuner
Tuning (Tuner)
Is a microphone required for the tuner?
For live analysis, yes. But without a microphone you can still tune by ear using the
reference tone — which is good ear training in itself. For step-by-step methods, see the
guitar tuning guide.
What does A4 = 440 Hz mean? Can I use 432 Hz?
A4=440 Hz is the international standard frequency of middle A; all tuning
calculations are based on it. You can customize the reference frequency in the Metrovy tuner
(432–446 Hz).
The needle keeps jittering — how do I hold the tuning?
Pluck the string once at medium strength and let the sound settle (skip the first
half second). Reduce background noise and play close to the microphone. Old strings vibrate unevenly and
are hard to tune — changing strings every 3-4 months is recommended.