KingMetronome: Rhythm Lab

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About this app

KingMetronome is the rhythm laboratory for serious musicians. Stop using basic metronome apps — start training rhythm, polyrhythms, and groove.
Built by a working drummer, KingMetronome packs 15 specialized modules into one rhythm trainer for drummers, percussionists and all musicians.
▸ POLYRHYTHM TRAINER
Practice 3:2, 4:3, 5:4, 7:5 and advanced ratios (5:3, 7:4, 7:6, 11:8). Isolate each voice, control volume independently, visualize the rhythmic grid in real time.
▸ RHYTHM READER
Infinite sight-reading exercises with real musical notation (VexFlow). 376+ rhythmic combinations: triplets, quintuplets, sextuplets, sixteenths, dotted figures, ties and rests.
▸ METRIC MODULATION BUILDER
The first drag-and-drop metric modulation tool. Pick subdivisions, mark the pivot — the app calculates the new BPM automatically and plays it in real time.
▸ CREATOR
Build your own rhythm exercises with a full notation editor. Complete figure families up to septuplets, accent system, repeats. Export to WAV and PNG.
▸ BRAFF SWING
Developed in collaboration with pianist Malcolm Braff. Explore logarithmic swing and microtiming feel that no other metronome offers.
▸ TAP TIMING TRAINER
Measures your microtiming down to the millisecond and shows exactly where you're rushing or dragging.
▸ NEGATIVE RHYTHM
Internalize the silence between notes. A unique module that develops your internal pulse.
▸ PHRASE DISPLACEMENT
Shift phrases by sixteenths, eighths or triplets. Hear how the same pattern feels in different metric positions.
▸ BINARY TO TERNARY ADAPTATION
Convert any pattern from binary to ternary and back. Essential for jazz and Afro-Cuban styles.
▸ CUSTOM CLAVE PATTERNS
Build any clave: 3-2, 2-3, bossa, son, rumba — or create your own.
▸ AMALGAMS
Practice irregular subdivisions: 3, 5, 7 sixteenths within a beat.
▸ PROGRESSIVE TEMPO
Gradually increase tempo to build technical control.
Plus polymeter, elastic phrase and more.
WHY KINGMETRONOME
While other metronome apps focus only on tempo and accents, KingMetronome trains the rhythmic concepts musicians actually need to internalize.
▸ Sample-accurate audio engine
▸ Real WAV samples (not synthesized)
▸ Custom presets and chains
▸ Available on Android, iOS and Web
PRICING
Free tier includes basic metronome, claves, progressive tempo and negative rhythm. Premium 9,99 USD, ONE-TIME payment — no subscription, no ads) unlocks all 15 modules forever.
PERFECT FOR
Drummers, percussionists, conservatory students, jazz / prog / math rock players, session musicians and teachers — anyone who wants real rhythmic independence.
Built by Martin Moroni
Support: [e-mail]
Web: kingmetronome.com

What’s new

English voice count-in (one/two/three/four) added to the metronome. Elastic Phrase: new Song Mode to chain phrases (A/B/C/D) with repeats, plus WAV audio export. Better offline performance and several fixes.