Euclidean drums for AUM
BeatBridge
Six drum rings that spread their hits evenly over up to 32 steps. A beat in seconds, in the app with its own drum kits or in AUM.
Coming soon to theApp Store
What it does · Who it’s for · Set up · Features · Support · Privacy policy
What it does
Euclidean beats without the manual
Give a ring a number of steps and a number of hits, and BeatBridge spreads the hits as evenly as it can. That simple rule gives a lot of the drum patterns you already know. Kick, snare, hat and three perc rings each have their own length, so they drift against each other and the beat keeps moving.
Play it in the app with four built-in drum kits, or load it in AUM to play any drum app, or the same kits as an instrument.
Watch
See it played
Who it’s for
A beat to play over, fast
Bands that jam
When the band wants to play, not program, set up a groove in seconds and jam over it. Move between three quick slots without stopping.
iPad musicians
Drums for your AUM rig that follow its transport and tempo. Play the built-in kits or drive the drum app you already use.
Songwriters and music fans
Put a beat under a new song or idea without learning a drum machine. Start from a built-in beat, roll the die, keep what works.
Set it up in AUM
Four steps to a beat
1
Add BeatBridge
Load it as a MIDI processor and route it to a drum app, or as an instrument to play the built-in kits.
2
Pick your drum app
Under ⋯, the Drum app menu sets every ring’s note for General MIDI, FAC Drumkit and 31 more drum apps.
3
Shape the rings
Touch a ring to pick it. Slide along the strip for steps, tap a cell for hits, drag round the ring to turn it.
4
Press play in AUM
The rings follow AUM’s transport and tempo. Spice adds the feel, the die rolls a new beat.
Opening the BeatBridge app itself shows the same steps.
Features
Six rings and one feel knob
Six rings
Kick, snare, hat and three perc rings, each 1 to 32 steps long. Rings of different lengths drift against each other.
Steps, hits, turn
Slide for steps, tap for hits, and drag the ring or turn Rotate to move where the hits land.
Spice
Accents, velocities that move a little every loop and ghost notes, all on one knob.
Groove
Straight, Swing, Shuffle, Lazy, Push and Human, with an Amount. Tap the tempo to open it.
Four drum kits
Analog, Club, Punch and Wood, made with Mutable Instruments’ drum models, with a compressor to make them punchier.
Perc, soft to loud
Clave, marimba, maracas, tambourine and more: nine or ten perc sounds per kit, from soft shakers to knocks.
Any drum app
Each ring sends its own channel and note. Ready-made maps for General MIDI, FAC Drumkit and 31 more drum apps.
Quick slots and presets
Three slots over the rings, from calm to busy: tap one to switch, and the die fills all three. Seven built-in beats, and yours by name in AUM’s preset menu.
Standalone too
The app plays the kits on its own, sends the same MIDI out, follows MIDI clock when one comes in and has tap tempo.
Also by Tanel Teemusk
More apps for making music
BeatBridge
Support
Something not working, or an idea for BeatBridge? Write to hello@teemusk.com.
Common questions
What is a Euclidean rhythm?
A number of hits spread as evenly as possible over a number of steps. Three hits over eight steps is the tresillo you hear in a lot of Latin and pop music; four over sixteen is four on the floor.
Do I need a drum app?
No. In the app, or loaded in AUM as an instrument, BeatBridge plays its own four kits. Loaded as a MIDI processor, it plays any drum app you route it to.
Does it follow AUM’s tempo?
Yes. In AUM the rings start and stop with AUM’s transport and play at its tempo. The app on its own has its own tempo with tap tempo, and follows MIDI clock when one comes in.
Does it run on iPhone and Mac?
Yes, on iPad, iPhone and Mac, bought once for all three. On iPhone the rings sit over the controls; on iPad and Mac they sit side by side.
BeatBridge
Privacy policy
Last updated 15 November 2026
This policy covers the BeatBridge app and its Audio Unit plugin. BeatBridge is made and published by Tanel Teemusk. In short: the app collects no data.
What the app collects
Nothing. BeatBridge has no accounts, no analytics, no advertising and no tracking, and it makes no network connections. Nothing about you or the way you use it is sent to me or to anyone else.
Your beats and settings
Your beats, presets and settings are saved on your device and in your host’s session and presets. They leave it only if you share them yourself.
Children
Since the app collects no personal data from anyone, it collects none from children either.
Changes to this policy
If this policy changes, the new version will be posted on this page with a new date at the top.
Contact
Questions about privacy go to Tanel Teemusk at hello@teemusk.com.