TempoKit · Music Practice Tools

Practice in perfect time,
every single session.

Ten free tools for students, teachers and producers — a rock-steady metronome, tap tempo, delay and beat calculators, note frequencies, scales, chords and a practice timer. No sign-up, no downloads; everything runs right here in your browser.

02

Tap Tempo

Heard a song and want its tempo? Tap the big button in time with the beat and TempoKit works out the BPM from the gaps between your taps.

— BPM
Taps counted0
Average gap—

Example: Tap exactly once every half second and the readout settles on 120 BPM — a 500 ms gap between taps is always 120 BPM.

03

Beat Length Calculator

Turn any tempo into real time. Enter a BPM and instantly see how long one beat lasts in milliseconds and seconds, and how long a full 4/4 measure takes — handy for editing, sampling and syncing video.

One beat500 ms
One beat0.50 sec
One 4/4 measure (4 beats)2.00 sec
One 4/4 measure2,000 ms

Example: At 120 BPM each beat lasts exactly 500 ms, so a 4/4 measure of four beats lasts 2 seconds.

04

Delay Time Calculator

The producer’s shortcut for musical echoes. Enter your track’s BPM, pick a note value, and get the exact delay time in milliseconds to type into your delay plug-in so repeats land perfectly on the beat.

375 ms
Note valueDelay

Example: At 120 BPM a quarter note is 500 ms and the classic dotted-eighth delay is 375 ms — the echo heard on countless guitar records.

05

Note Frequency Calculator

Find the exact pitch of any note in hertz. Pick a note and an octave and TempoKit calculates its frequency using standard concert pitch, A4 = 440 Hz, in equal temperament — the system behind pianos and tuners.

440.00 Hz
NoteA4
One octave up880.00 Hz
One octave down220.00 Hz

Example: A4 is 440.00 Hz by definition, middle C (C4) works out to 261.63 Hz, and A5 — one octave above A4 — doubles to 880.00 Hz.

06

Tempo Marking Lookup

Sheet music speaks Italian. Type a BPM to find its traditional marking, or pick a marking to see the tempo range it covers and hear it in the metronome.

Allegro
Typical range120–156 BPM

Fast, bright and lively — the tempo of countless symphony finales.

MarkingMeaningBPM range

Example: 120 BPM lands in Allegro (120–156 BPM). A gentle 90 BPM is Andante (76–108 BPM) — a relaxed walking pace.

07

Scale Finder

Pick a root note and a scale type and see every note in that scale, spelled correctly for its key — the map you need for melodies, solos and improvisation practice.

C Major scale7 notes

Example: C Major is C – D – E – F – G – A – B (no sharps or flats at all), and A Natural Minor is A – B – C – D – E – F – G, which is why the two keys are called relatives.

08

Chord Finder

Choose a root and a chord type to see exactly which notes build that chord — including the flat sevenths and sharpened fifths that trip everyone up, spelled the way musicians actually write them.

C Major chord3 notes

Example: A C major chord is C – E – G. Add the flat seventh and C7 becomes C – E – G – B♭ — that B♭ is what gives blues and jazz their pull back home.

09

Practice Session Timer

Structure your practice like a pro. Set a session length, choose how often you want a short break, and a soft chime sounds at each break point and again when the session is complete.

25:00
Ready when you are.

Example: A 25-minute session with breaks every 10 minutes chimes at the 10- and 20-minute marks for a stretch and a sip of water, then plays the finish chime at 25 minutes.

10

Time Signature Helper

Decode the two numbers at the start of a piece. Pick a time signature to see how many beats fit in each measure, what kind of note gets one beat, and exactly how to count it out loud.

Beats per measure4
Beat unit (one beat =)Quarter note
FeelSimple quadruple

Four quarter-note beats in every bar — “common time”, the default pulse of pop, rock and most folk songs.

Example: In 6/8 you count six eighth notes — “ONE-two-three, FOUR-five-six” — which feels like two big beats, the rolling pulse behind many ballads and sea shanties.

How It Works

Every TempoKit tool runs instantly, right on this page. There is nothing to install and nothing to upload — here is what happens under the hood.

1

Pick a tool and enter your numbers

Choose a tempo, a note or a time signature. Results update the moment you change a value, so you can experiment freely until the numbers feel right.

2

Your browser does the maths — and the music

Calculations use the standard formulas musicians rely on, and the metronome and timer chimes are generated live with the Web Audio API. The metronome schedules clicks slightly ahead of time, which is why the beat never wobbles.

3

Copy it, use it, practise

Most tools have a Copy result button so you can paste tempos, delay times and chord notes straight into your lesson notes, DAW session or practice journal.

Frequently Asked Questions

Quick answers about tempos, timings and how these tools work.

Is TempoKit really free?

Yes — every tool on this page is completely free, with no sign-up, no accounts and no limits. The tools run entirely in your browser, so they also work fine on a phone or tablet during lessons and rehearsals.

Why does the metronome stay so steady?

Instead of asking the browser to “play a click, wait, repeat” — which drifts whenever the device gets busy — TempoKit schedules each click a fraction of a second ahead using the Web Audio clock. That lookahead scheduling is the same technique professional metronome apps use, so the gap between beats stays exact even at 300 BPM.

What BPM should a beginner practise at?

Start much slower than the final tempo — often 50 to 70 percent of it. If a passage is marked Allegro at 132 BPM, learn it cleanly at 70–90 BPM first, then raise the metronome by 4–6 BPM at a time. Slow, accurate repetitions build far better technique than fast, messy ones.

How do I find the tempo of a song I like?

Play the song, open the Tap Tempo tool and tap the big button on every beat for at least eight to ten taps. The readout averages your taps into a BPM, which you can send straight to the metronome with one click. If your taps drift, wait two seconds and it resets itself.

What is a dotted-eighth delay, and why do producers love it?

A dotted-eighth delay repeats your note three sixteenths later — 375 ms at 120 BPM. Because that timing sits between the beats, the echoes fill the gaps and create a bouncing, rhythmic groove. It is the signature sound of famous guitarists from The Edge to Albert Lee, and the Delay Time Calculator gives you the exact setting for any tempo.

Why is A4 tuned to 440 Hz?

440 Hz for the A above middle C is the international tuning standard (ISO 16), adopted so orchestras, pianos and instrument makers all agree on the same pitch. Some orchestras tune slightly higher, to 442 or 443 Hz, for extra brilliance — but 440 Hz is the reference every tuner and this calculator uses.

About TempoKit

TempoKit is a small, focused corner of the TapeToolHQ network built for one job: making music practice easier. Whether you are a student working through exam pieces, a teacher planning lessons, or a producer dialling in a delay, the tools here answer the everyday questions of tempo, timing and theory in seconds.

Everything is calculated from the standard references musicians trust — equal temperament with A4 = 440 Hz, the commonly published Italian tempo ranges, and correct note spelling for scales and chords (so a C7 shows its B♭, not an A♯). No audio files are streamed and no data leaves your device; the sounds are synthesised live by your browser.

Questions, corrections or a tool you would love to see added? Write to us at [email protected] — genuinely, suggestions from practising musicians shape what gets built next.