Sequentia: MIDI Sequencer
Generate riffs, chords & drums
Free · In-App Purchases
Listen: tap a control, move a knob on your controller, done. Your gear on any control, in every project.
Sequentia is a generative MIDI sequencer for synths, drum machines and modular.
Add a module and it writes its own part: drums, basslines, arps, chords, melodies. Press Random and a full pattern is playing. Turn on Mutate and it keeps evolving while it runs. The pattern libraries are written for techno and acid, and the generative modules go further out than that. Seven finished demo tracks come with the app.
WHAT WRITES THE PARTS
Drums, eight lanes, with the swing each genre actually has.
Tops, cymbals, shakers and claves over the kit, on one fader.
Bass, sixteen styles from techno to dub to EBM.
Acid, 303 lines that really slide.
Chords and Arp, in your key, following each other.
Stabs, from skank to rave.
Piano, drawn by hand or written for you.
Euclid, three rings at different lengths, drifting apart and landing together bars later.
Rain, notes falling from a drizzle to a downpour.
Bounce, physics balls playing your key off the walls.
Sampler, your own loop, warped to the tempo and the key.
Mod, LFOs that sweep your synth's knobs on their own.
Vinyl, a record that turns while the rack plays.
Mixer, to solo, mute and balance live.
ONE STUDIO, YOUR WHOLE RIG
Every module picks its own MIDI device and channel, so each machine gets its own part. MIDI over USB-C, Bluetooth or network. MIDI Clock in and out keeps the gear in time. In any DAW the app is a MIDI source you can record straight onto a track. Leave the app and the music keeps playing, with the controls on your Lock Screen.
MODULATE AND CONTROL YOUR HARDWARE
Pick your machine from the library and its control map loads, ready to turn: over a hundred and thirty synths, grooveboxes and drum machines, every map read out of its own manual. Put an LFO on any of those knobs and it sweeps in time with the pattern. Arm the red R, turn a knob by hand, and the move becomes a loop locked to the bar. CC coming in works too, so a controller fires Random, Mutate, mutes and the transport.
LIVE JAM
Every module keeps pattern slots. Fill them as you go and switch on the bar, like clips. Live Performer is one pad for the whole rack: move a finger and every module answers at once with more density, new variations or a break. Fills, swing and humanize are a tap each, while everything runs.
SCENES, AND A SET YOU CAN PLAY
Save a section as a scene, put the scenes in order, and the timeline plays the set. Or switch scenes by hand while it runs. A project holds several racks, each with its own key and tempo, so a breakdown can sit lower and slower than the drop.
ONE PROGRESSION, EVERYTHING FOLLOWS
Write the chords once. The basslines, arps and stabs follow the changes.
NO HARDWARE YET
Every module plays through the app's own synth, free, so a whole track works with nothing attached. Load your own samples into the Sampler, or build a drum kit out of them.
EVERYTHING IN ONE PROJECT
Notes, patterns, scenes, samples, routing and arrangement live in one project that saves itself. Take the whole thing out in one step: the rack as MIDI, or every scene as its own folder, named so the session opens in your DAW making sense. Samples come with it if you want them.
ON IPHONE AND IPAD
One app for both. On the tablet the rack becomes a grid of cards you page through, three across on a 13 inch. Menus come in from the right and leave the instrument where it is. Open a module and it steps into the middle of the screen with its settings beside it. Landscape, for a stand and two hands.
Turn iCloud on and the same projects, presets and samples are on both devices, in a Sequentia folder you can see in Files. Off until you switch it on.
Sequentia is free, and so is the built in sound, Live Performer and CC Control. Sequentia Pro adds pattern slots, scenes, several racks, every drum style, your own libraries, unlimited projects and MIDI export.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.sequentia.studio/privacy
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Sequentia 4.3
Listen: your controller on any control
Menu, Listen, then Learn. Tap a control, move a knob on your controller, and it is learned. Knobs, faders, endless encoders and pads, on any plate, in any menu, and on Play, the scenes and the racks. Invert, Range and Pick-up for a knob, Toggle or Hold for a button. A controller set up once works in every project. Pro.
Virtual outputs
Up to eight MIDI ports from one app. Settings, MIDI Devices adds Sequentia 2, Sequentia 3 and on, and other apps see each one as its own MIDI input with its own sixteen channels. A live set no longer ends at sixteen channels.
Fixes
On iPad the pattern slots under a module no longer cut through its card.
Acid's Fill reaches every step again after Random wrote a sparser line.
Under another machine's MIDI clock the plate animations follow its tempo and no longer jump back.
The developer, Yahor Kamarou, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Yahor Kamarou
- Size
- 25.8 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later.
- iPhone
- Languages
English and 4 more
- English, French, German, Japanese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sequentia Pro Monthly USD 9.99
- Sequentia Pro Yearly USD 49.99
- Sequentia Pro Lifetime USD 99.99
- Copyright
- © 2026 Yahor Kamarou
