Metric Modulation App — Build Your Own Exercises
The first drag-and-drop metric modulation exercise builder. No more pencil-and-paper rhythm math.
If you've ever tried to practice metric modulation — the technique of shifting your pulse from one subdivision to another while keeping a common note value — you know the hardest part isn't playing it. It's building the exercise. Working out what the new BPM should be, which note value is the pivot, how to count the transition, and what the target subdivision actually feels like.
KingMetronome's Metric Modulation Builder solves that. You drag and drop subdivisions, mark a pivot, and the app plays the modulation in real time at the correct new tempo — calculated automatically.
Try the Metric Modulation Builder
Available on iOS and Web. One-time payment, no subscription.
Open Module →Part of KingMetronome Premium — $6.99 USD one-time
What is metric modulation?
Metric modulation (also called tempo modulation) is a rhythmic device where the beat shifts from one subdivision to another, creating a new pulse while keeping a common rhythmic value. The classic example: you're playing 16th notes at 80 BPM. You decide that what was a triplet inside those 16ths is now your new quarter note. The pulse changes, but your hands kept moving at the same speed.
Drummers like Tony Williams, Vinnie Colaiuta, Mark Guiliana, and bands like Meshuggah, Tigran Hamasyan's group, and Animals as Leaders use this technique constantly. It's also the rhythmic backbone of a lot of jazz, prog metal, and modern instrumental music.
Why most musicians struggle with it
Three reasons:
- The math is annoying. Going from 16ths at 80 BPM to a triplet feel means the new BPM is 80 × (3/4) = 60. Or is it 80 × (4/3) = 106.67? Depends on which way you're pivoting. Easy to get wrong.
- Internalizing the transition is hard. You need to hear the source feel and the target feel back-to-back, locked in, with a clear pivot. Most metronomes can't do that — they play one pulse, period.
- There's no good practice tool. Most metronome apps focus on click and subdivision. Metric modulation requires building sequences, not just clicks.
How the KingMetronome builder works
- Drag & drop: pick subdivisions (8ths, triplets, 16ths, quintuplets, sextuplets, septuplets) and order them in a sequence.
- Mark the pivot: tell the app which note value stays constant across the modulation.
- Auto BPM calculation: the app computes the target tempo so the pivot lines up.
- Audible transition: hear both subdivisions back-to-back with a clean modulation point.
- Loop and save: store your favorite modulations as exercises.
- Visual representation: see the subdivision grid so you understand what's happening, not just hear it.
Subdivisions supported
You can modulate between any pair of these:
- Quarter notes (the pulse)
- 8th notes (2 per beat)
- 8th-note triplets (3 per beat)
- 16th notes (4 per beat)
- Quintuplets (5 per beat)
- Sextuplets (6 per beat)
- Septuplets (7 per beat)
This means you can practice classic modulations (16ths-to-triplets, triplet-to-16ths) and exotic ones (quintuplet-to-septuplet, sextuplet-to-16ths) that most metronome apps don't support.
How it compares to other metronome apps
| Feature | KingMetronome | PolyNome | Pro Metronome |
|---|---|---|---|
| Drag-and-drop modulation builder | Yes | No | No |
| Auto BPM calculation | Yes | Manual | Manual |
| Quintuplets & septuplets | Yes | Yes | No |
| Web version (no install) | Yes | No | No |
| iOS app | Yes | Yes | Yes |
| One-time payment | $6.99 | $11.99 | Free + IAP |
Frequently asked questions
What is metric modulation?
It's a rhythmic technique where you shift the pulse from one subdivision to another while keeping a common note value. The hands and feet keep moving at the same speed, but the underlying beat changes — creating a new tempo that's mathematically related to the old one.
How do I practice metric modulation as a drummer?
Master the source subdivision first. Then identify the pivot — the note value that stays constant. Then transition to the target subdivision. A builder like KingMetronome lets you hear the transition without having to do the BPM math manually.
Which subdivisions can I modulate between?
KingMetronome supports modulations across 8th notes, triplets, 16th notes, quintuplets, sextuplets, and septuplets — any combination. You can pivot on any common note value.
Is there a free metric modulation app?
The Metric Modulation Builder is part of KingMetronome Premium ($6.99 USD, one-time). The free tier includes the basic metronome, claves, progressive tempo and negative space modules.
Does it work on Android?
Yes — the web version works on any modern browser including Android. The native iOS app is on the App Store. Android native app is on the roadmap.
Ready to stop doing rhythm math by hand?
Try the Metric Modulation Builder →Part of KingMetronome Premium — $6.99 USD one-time, no subscription