Online Metronome

The Online Metronome is a free, browser-based practice tool that produces a steady, adjustable click to help you keep perfect time. Set any tempo from 40 to 240 BPM, pick a time signature, add accents and subdivisions, or use tap tempo to match a song. A swinging pendulum and lighted beat indicators make the pulse easy to follow, while a sample-accurate Web Audio clock keeps the timing rock steady — no download, plug-in, or sign-up required.

What Is a Metronome?

A metronome is a device that ticks at a constant, chosen speed measured in beats per minute (BPM). Musicians have used mechanical wind-up metronomes since the early 1800s to practise playing in time. Practising with a metronome trains your internal sense of rhythm, exposes rushing or dragging, and lets you increase the tempo of a difficult passage gradually and reliably. This online version replaces the wind-up spring with your browser's audio engine, so the click stays precise at any tempo.

How to Use the Online Metronome

1. Set your tempo: Drag the BPM slider, tap the − and + buttons for fine control, or press Tap Tempo in time with the music to find the BPM automatically.
2. Choose a time signature: Select a meter such as 4/4 or 6/8. The metronome groups the clicks into measures and accents the first beat of each bar.
3. Set accents and subdivisions: Click any beat light to cycle it between accented (🟠), normal (🔵), and muted (⚪). Add eighth-, triplet-, or sixteenth-note subdivisions for softer clicks between the main beats.
4. Press Start: Hit the Start button or the spacebar. Watch the pendulum swing and the beats flash in time with the click, and adjust the volume or sound to taste.

Key Features

Understanding BPM and Beat Length

Beats per minute tells you how many beats fit into one minute, so a higher BPM means a faster tempo. The time between two beats is simply one minute divided by the tempo:

For example, at 120 BPM each beat lasts \( 60 \div 120 = 0.5 \) seconds, so you hear two clicks every second. At 60 BPM each beat lasts a full second. Knowing this helps you translate a written tempo marking into an exact speed for practice.

Tempo Markings Chart

Classical scores often use Italian words instead of numbers. This chart shows the common tempo terms and their approximate BPM ranges — the same names the metronome displays as you change speed.

Tips for Practising with a Metronome

• Start slow. Choose a tempo where you can play the passage cleanly, even if it feels too easy. Accuracy first, speed later.
• Raise the tempo in small steps. When you can play a section three times without a mistake, bump the BPM up by about 5 and repeat.
• Use subdivisions for fast runs. Adding eighth or sixteenth clicks gives you more reference points and keeps rushing under control.
• Practise placing notes between clicks. Try muting some beats or setting a slow tempo so you rely on your own timing between the clicks.
• Accent the downbeat. Keeping the first beat of each measure accented helps you feel the meter and stay oriented in the bar.

Frequently Asked Questions

What is a metronome used for?

A metronome produces a steady click at a chosen tempo measured in beats per minute. Musicians use it to practise playing in time, build a reliable internal sense of rhythm, keep a consistent speed across a whole piece, and gradually increase tempo while learning difficult passages.

How many beats per minute should I practise at?

Start slow enough to play a passage cleanly with no mistakes, often 20 to 40 percent below the target tempo. Once you can play it accurately several times in a row, raise the tempo by about 5 BPM and repeat. Slow, accurate practice builds speed far more reliably than rushing.

What does the time signature do on a metronome?

The time signature groups the clicks into measures. The top number sets how many beats are in each measure, so 4/4 gives four beats per bar and 3/4 gives three. The metronome accents the first beat of each measure so you can hear where each bar begins.

What is tap tempo?

Tap tempo lets you find the BPM of a song by tapping a button in time with the beat. The metronome measures the time between your taps and calculates the matching tempo, which is handy when you know how a piece should feel but not its exact BPM.

What are subdivisions on a metronome?

Subdivisions add softer clicks between the main beats. Eighth notes add one click between beats, triplets add two, and sixteenth notes add three. Practising with subdivisions helps you place fast notes evenly and keeps your timing tight between the main pulses.

Is this online metronome accurate?

Yes. It uses the Web Audio API, which schedules each click on the browser's high-precision audio clock rather than ordinary page timers. A look-ahead scheduler queues clicks slightly in advance, so the tempo stays steady and does not drift even if the rest of the page is busy.

Additional Resources

• Metronome - Wikipedia
• Tempo - Wikipedia