Prism MIDI Sequencer
音乐
¥148.00 · App 内购买
Prism is a 16-track AUv3 MIDI step sequencer for iPhone and iPad that turns sparks of inspiration into living, breathing music. It’s built for touch and flow—pair it with your favorite synths, samplers, drum apps, and gear.
Key Features
-------------
[ Sequencing Engine ]
----------------------
- High resolution:
1/32 steps, up to 512 trigs/pattern, swing, polyphony, micro-timing per step
- Elastic timing:
per-sequence lengths plus smooth speed changes for real polyrhythm/polymeter
- Per-step control:
parameter locks and Step FX
- Playback modes:
Standard, Overlap, Trig Legato, Drone
- Capture everything:
live record with quantize, retroactive recording (always listening), and tap-in steps
- Human feel & probability:
Chance, Every, Hold, Range, Accent
[ Tonal Tracks (Melody & Harmony) ]
------------------------------------
- Always in key:
scale modes across the app (use built-in scales or create your own)
- Note input modes:
Poly, Chord Simple, Chord Multi, Chord Blocks
- Flow modes (musical logic):
Standard, Peek, Echo, Melt, Mirror
- Per-Trig Step FX:
Velocity, Pitch, Ratchet, Strum
- Multi-Seq:
4 independent sequencers per tonal track to weave interlocking parts
- Import and edit .MIDI files
[ Drum Tracks (Kits & Samplers) ]
----------------------------------
- 16 mini-sequencers per drum track with independent settings, FX, and controls
- Modular linking, advanced layering, and Drum↔Tone interactions for shared timing tricks
- Drum profiles for fast kit routing and universal connectivity
- Per-Trig Step FX (drum):
Velocity, Length, Ratchet, Flam
[ Modulation, Generative & Creative Tools ]
-------------------------------------------
- 6 LFOs per track (track-tied and CC-tied) for tempo-synced movement and evolving patterns
- Per-track/pattern 16-step Arpeggiator—from classic to experimental
- Harmonizer and Hue Sequencer for chord color and phrase rotation
- Tape-style MIDI Slicer & Looper (per track/pattern) for instant remixing
- Smart randomizers:
one-tap generation for drum patterns, sequences, and fx.
[ Performance, Workflow & UI ]
------------------------------
- Scenes, mute profiles, and bar looper to play, capture, and perform.
- Fast edits:
copy, paste, multi-select, quick duplicate
- Multi-touch keypad matrix & sequencer for hands-on control
- Light & Dark themes
- Host-aware saving (internal presets + AUv3 state)
[ Hardware & Host Integration ]
-------------------------------
- Deep, bi-directional control for Novation Launchpad (Pro, Mk3, Mini, X) and Launchkey Mini MK4 with LED feedback & mappings
- External MIDI in/out/thru, per-track channel routing
- AUv3 works in leading hosts (e.g., AUM, Logic Pro for iPad)
[ Timing & Specs ]
-------------------
- High-precision engine:
480 PPQN for tight playback at any tempo
- iPhone & iPad AUv3 (MIDI-only; no built-in sounds)
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Find more info at sites.google.com/view/prism-midi-sequencer/home
Happy creating, y’all.
—A Mortal Mage
更多 What's New in Prism
64-Trig Mode:
Go from 16 to 64 trigs in a full-screen view built for fast sequencing and p-lock editing. Hold shift and press the full screen button that appears beneath the main sequencer trigs.
Slim Sequencer View:
Drag to a narrow layout for a 32-step view that sits alongside your AUv3 plugin. Sequence and tweak at the same time.
Draw Your Own LFO Shapes:
Draw LFO waveforms freehand. Link the cycle to your sequence length and set loop count — great for risers and sweeps that stay locked to your pattern.
Smoother Pattern & Scene Switching:
Patterns and scenes transition musically now, whether quantized to bar or not. Long-press to preview a pattern or scene, release to snap back.
Drum Randomization:
Randomize a full pattern or just a section. Pick a genre preset, remix what's there, or go fully random.
GM Drum Type Tagging:
Assign a standard GM Drum type to each pad. Randomization and MIDI drum imports use these to map correctly.
Chromatic Drum Keyboard:
Cycle and layer drum pads on a single sequence with the keypad note button. Stack multiple pads, multiple hits per trig, full chromatic range at any position.
Melt Capture:
Hit capture on a melting track to write the results into the sequence.
Step FX + Melt Mode:
Step FX now works on melting tracks.
Drum Layering & Sidechaining:
Layer pads with per-pad velocity offsets. Sidechain support for drums added.
P-Lock Smoothing:
Per-trig parameter lock smoothing for more natural modulation.
Simpler Piano Roll:
Drag to select, drag to move, two-finger drag to resize.
Bug fixes, CPU improvements, and visual cleanup throughout.
2.05 6月24日
What's New in Prism
Advanced Swing — Long press the Swing parameter in Track Select to explore hundreds of swing profiles. Works with Euclidean sequences too.
Ghost Notes — Set velocity to zero to place ghost notes. They don't trigger any sound but can hold parameter locks. Pair them with the Euclidean sequencer to carve out empty space in your patterns.
Step FX Snapshots — A new snapshot grid makes it easy to recall Step FX presets. Long press the Step FX icon on the GUI screen to access it.
Time Machine — Prism now silently captures your state every 15 seconds (configurable in Device Settings), storing the last 16 snapshots. Hold Shift and press Undo to jump between them — instant undo/redo.
External MIDI Pipe — Open a separate MIDI connection for Launchpad or Launchkey, perfect for working inside Loopy Pro. Enable it in Settings → External Input.
Launchpad Sequence View — A simplified 64-step view for Launchpad. Access it from the top control bar, 4th button from the left.
New Conditional: Skip First Loop — Scroll to the bottom of the "Every" conditional to find it.
Bug Fixes — Lots of them.
2.04 4月5日
What’s New
• Multi-Trig Parameter Editing
Edit parameter locks across multiple trigs in seconds. Hold Capture, tap a glowing parameter, then slide across the visual grid to set values instantly.
• [IAP] Multi-Layer Drum Euclidean FX
Generate evolving drum grooves with three Euclidean rhythm layers per pad. Blend Euclidean notes and velocity with existing trigs to create intricate rhythmic patterns.
• Expanded Step Arpeggiator
Each step now supports length, chaos, ratchet, playback direction, and more for deeper rhythmic shaping.
• Advanced Step LFO Editor
Design your own modulation shapes. Set the Shape parameter to “Cust.” to tap-edit individual step shapes.
• New Tekno Factory Profile
• Quick AUv3 Icon Import
Add AUv3 icons to projects directly from Track Select. Tap the track name above the prism (or long-press a track trig) and press “+”.
• Expanded Scale Mode
Explore 50+ musical scales for new harmonic possibilities.
• Smarter Chords
Dial in different chord types faster than ever with the music theory keypad. Replaces the old triad chord mode.
• Updated Ableton Script / Control
Download the latest script on Prism's website to connect the two.
2.03 3月20日
What’s New:
A major workflow update focused on faster creation, live remixing, and smarter capture, with powerful new integration and meaningful performance improvements for larger projects.
- Performance Mode:
A live remix layer with MIDI effects such as stutter, repeat, and hold, allowing you to transform the output of all tracks simultaneously. Designed for improvisation and transitions.
(Long-press SNG to toggle)
- Song Mode Update:
Cleaner visuals and a more fluid “build while you play” workflow for arranging without breaking creative flow.
- Macro XY Pads (Global & Per-Track):
Expressive XY pads that control multiple macros at once.
Use momentarily for transitions (snap back on release) or lock for deeper sound design.
Includes capture functionality to reassign target CC values and reset macros.
(Long-press CC while a profile is loaded)
- Immediate Ableton Live Integration (New):
Prism works as a natural extension of Ableton Live via a dedicated control script.
Instantly control Ableton macros directly from Prism
Automatic mapping of the first 16 Ableton tracks
Auto-captures track names, macro names, and drum pad names
Per-track control of velocity and pan
Automatic track color syncing
Channel alignment is handled automatically in Ableton based on track order. For seamless play, simply set each Ableton track to Monitor: In as you add it.
(Enable in Prism: Settings → Ext Control → Ableton)
- Capture Button (New):
Located next to Copy and Paste in the top bar. Instantly create a new memory instance (scene, pattern, or sound) from your current state so you can experiment freely while preserving the original.
Double-tap for a smart, context-aware capture action.
- Restore Deleted Trigs:
While holding Capture, the last 16 deleted trigs appear on empty pads—tap any pad to restore.
- Advanced Retroactive MIDI Capture:
Phrase-based capture (up to 16 bars) with automatic phrase detection after a bar of silence.
Capture from live input, pre-FX sequence, or post-FX output.
Overwrite, merge, or add to a new pattern or lane, and select the exact region using the piano-roll view.
- Rapid MIDI Import:
Faster loading of drum and tone MIDI files for quick experimentation with large libraries.
- True Multi-Port MIDI Output:
Improved routing for advanced setups and DAWs such as Cubasis.
- Looper Enhancements:
Traditional bar-based looping plus a new page-based looping option.
Sequencer shifts and drum randomization now apply directly to looped regions, making remixing faster and more playable.
- Rhythm-Only Paste:
Apply the rhythm of copied material to existing notes without changing pitch—ideal for fast groove exploration.
- Performance & Stability Improvements:
Better handling of projects with heavy MIDI CC usage
Improved stability and performance when running in Loopy Pro
Smoother transitions when switching between graphics-heavy views
Overall improvements to CPU efficiency and MIDI processing
2.02 2月6日
Adds:
- New view for visualizing scenes
- iPad top bar now has an option to display the piano roll
- New support screen for midi capture with tone tracks
- Tip kit for new user onboarding
- Quick connect button for syncing launchkey/pads
Fixes:
- Bugs with Launchkey
2.01 2025/11/13
What's New
_____
- ($) Multi-Sequencer [x4 per tone track]
- ($) LFOs [x6 per track]
- ($) Step FX [x4 per trig]
- ($) Launchkey Mini MK4 Control
_____
- Speed FX w/ true polyrhythms
- Triplet grid
- Arp rate: sync/free
- Edit individual notes in a step
- Dusty & monochrome color schemes
- Create custom scales
- Chord blocks: strum & velocity randomization
- 64 Scenes (up from 32)
- MIDI CC / P-Locks / sound profiles - updated workflow
- Customizable humanize & swing engines
- Drum melt filters
- Move drum trigs between sequences
- Live play/record hue shifts
- Double Tap Tracks to Send MIDI Signal (helpful for opening AUV3 windows from Prism)
- Per trig sliders
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What's Improved
_____
- Clock Accuracy: Tighter timing & smoother BPM changes
- Reduced CPU
- Piano Roll (8 bar view).
- Song Engine Controls
- X/Y Touch Controls
- New Views, Graphics & UI
- Cleaner workflows throughout
- Faster trig edit state locking (slide finger up after long pressing a trig)
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Prism (v2.0)
For a complete list of what's new go to:
https://sites.google.com/view/prism-midi-sequencer/resources/manual
2.0 2025/11/07
[Updates]
- First Beat Walkthrough Guide
[Bug Fixes]
- Solves an issue with chromatic mode resetting the scale mode in other projects
- other small improvements
1.0709 2025/05/21
[Fixes]
- Fix for some broken links
- Other small improvements to user experience
1.0708 2025/05/14
[What’s New]
User Presets
Quickly access user presets via the notification bar — it now transforms into a dropdown when presets are available. Categories include:
- Arps
- Harmonizer
- Hue Sequences
- MIDI Presets
- Chord Block Sets
- Tracks
Multi-Track Velocity Mixer
Easily mix and balance velocities across all tracks in one unified view.
Pattern Conditionals
- A new conditional keypad under the Loop Keypad tab lets you skip entire sequences based on loop conditions.
- Crop and Record now attach loop points to specific steps, enabling more advanced pattern rearrangement.
- Demo video available on YouTube.
Edit Individual Trig Notes
- Tap the 4x2 note grid in trig focus mode or long-press the piano roll to edit individual notes using the main keypad.
Global Panic
- Hold Stop to silence all notes across all 16 tracks (previously only affected the active track).
Faster Feedback
- Submit your thoughts instantly using the new Feedback button under Settings → Support.
Arp Velocity Shortcut
- While holding the velocity strip, tap arp steps to quickly set velocity offsets.
Hue Enhancements
- Quick resolution buttons for faster rhythmic tweaks
- Speed slider moved to Hue → Seq Setup for better access
[Improvements & Fixes]
- Enhanced graphics and visual performance
- Improved CPU overhead
- Refined echo processing logic
- Smarter sound profile handling
- Improved reliability when following sequencer pages
- General stability improvements
1.0707 2025/05/13
[New]
- Added conditional, random, and jitter options to PLocks. Tap the white lock when adjusting PLocks to access them.
- Reworked the PLock engine for smoother performance and reduced glitches in certain combinations.
- Drum Piano Roll now displays all pads.
- For easier drum editing with the piano roll open, you can now toggle Shift + Pad = Mute on or off. While holding Shift, tap the "M" button to the right of the drum pad matrix to disable pad muting and allow pad selection instead.
- Improved pad shifting in drum tracks: it's now clearer how to shift all pads vs. individual ones left/right.
[Bug fixes]
- Fixed a crash when removing a currently playing song step.
- Fixed a bug that prevented roll step FX from being saved on drum triggers.
- Reworked internals to fix a host of other major bugs and crashes
1.0706 2025/04/04
[ADDED]
Flexible drum trig output
- Find the new option by holding a drum trig and using the "Alt. Pad" param
- Long press to toggle between all MIDI notes (1–128) or pads in the profile.
- Press the layer button to include the pads original set MIDI with the alternative output
Updated in-app help descriptions
[FIXED]
– Saving drum profiles
- Remixing empty chord blocks
- Mute profiles
- Arp handling
- Graphics
1.0705 2025/03/19
Highlight Touches
A new option to make taps and gestures visible, useful for screen recording and tutorials.
Enable it in Settings → Device → Highlight Touch
Prism Roadmap
See upcoming features, suggest ideas, and vote on your favorites.
Find it in Settings → Support → Roadmap
Manual Updates
More progress on writing the manual.
Bug Fixes & Usability Improvements
1.0704 2025/03/10
This update is all about manuals and workflow!
- Check out the updated manual! Find it in Settings → Support → Manual.
- PEEK, ECHO, and MELT have moved to SEQ Setup for a more intuitive workflow.
- FUSE is now WARP, better reflecting its functionality.
- Sleeker UI and improved graphical feedback for a smoother experience.
1.073 2025/03/08
- Song Mode: Default new step preference is now set to linked scenes for clarity. You can adjust this in "Device Settings." Access the secondary preference by pressing [Shift] + [New Song Step Trig].
- Importing MIDI: Adjust the detected scale of imported MIDI files.
- Bug Fixes & Stability Improvements.
1.072 2025/02/28
Added:
- Launchpad Pro (MK1) support
- Song Mode
- Piano Roll View
- Additional Randomization FX
- Generate Random Drum Patterns
- MIDI File Import
- 32 total scenes (expanded from 8)
- Scene recoloring & reordering
- Updated graphics & icons
- Adjustable param slider sensitivity (see Device Settings)
- New Icon
Fixed:
- CPU & stability improvements
1.071 2025/02/24
[Added]
- Sidechain drums: Press the layer icon at the top right of the 4x4 drum pads and select S-Chain. Then press the pads to select which drums should be side chained by the active drum.
- Change scenes and mute groups with external MIDI PC messages: PC 0-7 set the active scene. PC 8-15 set the active mute group
- New drop down menu options: Toggle the default menu style (dropdown vs. embedded)
[Fixes]
- Tone trigs being skipped randomly
- Touch functionality while holding record or track select
- Other general stability improvements
1.0697 2024/12/10
[New Features]
- Trig Roll / Ratchet: Access via the Transformation Keypad tab in Trig Focus state. Long-press "Roll" for advanced options.
- Constant MIDI Capture for Tone Tracks: Press Shift + Record to capture the last notes played. Long-press the Capture button to grab up to the last 16 bars.
- Step Trig Markers: Easily identify trigs with multiple notes, step FX, and parameter locks.
- Advanced Select, Copy, and Paste: Use the new quick-action buttons under the 2x8 sequencer while holding Shift, Copy, or Paste for efficient workflow.
- Full-Screen iPad View: A new lower button row provides quick access to Patterns, Mute Groups, and Scenes.
[Bug Fixes]
- Resolved various issues with iOS 18 compatibility.
- Fixed a crash occurring during new song generation.
- Improved graphics and touch control responsiveness.
1.0696 2024/11/24
[Added]
Enhanced Save & Settings Menus:
- Easily access options with a more user-friendly design. Long press the settings icon to find the original, embedded menus.
Favorites for Quick Access:
- Save your preferred drum and MIDI profiles for faster access during your sessions.
Shift Button:
- Replaces the top mute button. Old mute features are wrapped into the shift function. More shift features coming soon!
Track Color Customization:
- Hold a trig in track select mode to change track colors.
Harmonizer & Chord Block Updates
[Other Improvements]
Enhanced Graphics
Bug Fixes
1.0695 2024/11/06
[Fixes]
- Crashes related to iOS 18
- Follow resetting
[Includes]
- General improvements
1.0694 2024/10/06
[Fixes] Crashing on iOS 18
[Adds]
- Update setting mechanics for more options and continued feature development.
-- Use the top settings button to access state + mode specific settings on the keypad. Press the globe or double tap settings to access global settings.
- Added random chord progression generation. See Sequence Transformation keypad + 'Dice' keypad
- Added additional p-lock options for legato and trig reset. See param keypad + settings
- Added a channel filter for external keyboard input. Makes recording external inputs smoother.
1.0693 2024/09/25
[Fixes] Crashing on iOS 18
[Adds]
- Update setting mechanics for more options and continued feature development.
-- Use the top settings button to access state + mode specific settings on the keypad. Press the globe or double tap settings to access global settings.
- Added random chord progression generation. See Sequence Transformation keypad + 'Dice' keypad
- Added additional p-lock options for legato and trig reset. See param keypad + settings
- Added a channel filter for external keyboard input. Makes recording external inputs smoother.
1.0692 2024/09/25
- Update setting mechanics for more options and continued feature development.
-- Use the top settings button to access state + mode specific settings on the keypad. Press the globe or double tap settings to access global settings.
- Added random chord progression generation. See Sequence Transformation keypad + 'Dice' keypad
- Added additional p-lock options for legato and trig reset. See param keypad + settings
- Added a channel filter for external keyboard input. Makes recording external inputs smoother.
1.0691 2024/09/22
[New Features]
- Factory Presets For Korg Gadget Series. Full MIDI param mapping out of the gate. Press "F" in profile loading scroll window to show factory presets.
- Hold mute (top right) and adjust a MIDI param for temporary changes. Release mute to reset. Double tap mute to lock.
- Long press navigation page graphic to change the sequence length.
- Access the navigation page graphic in tone tracks. Long press the sequence page graphic to reveal the quick navigator keypad -> press "Nav Screen"
- Active notes for input are highlighted on the 4x4 keypad
[Fixes]
- Ongoing improvements
1.068 2024/08/31
[Fixes]
- Loading Arp Step Conditional Data
[New Features]
- Adjust Params w/ the slider to the right of the [4x4] keypad
- While holding the keypad slider tap a trig to quickly change the velocity / set a param-lock
- Drone mode: set the sequence length to 1/16 to drone the note
- Create Custom MIDI CC Profiles:
- Quickly create and save mapping profiles for your favorite instruments or take control on the fly.
- Customize sound profiles for each track’s pattern.
- Implement parameter locking for added control.
* FACTORY PROFILES COMING SOON
[Enhanced User Experience]
- Updated Graphics:
- New vertical orientation.
- Customization options available in global settings.
- Updated views designed for a more efficient workflow.
-Additional Copy / Paste Options:
- Use page graphic buttons for easy copy and paste.
- Quick paste: Press an empty trig while still holding copy for faster workflow.
- Copy/Paste bars using loop keypads.
- Double Tap to Reset: Easily reset parameters with a double tap.
1.067 2024/08/29
[New Features]
-Create Custom MIDI CC Profiles:
- Quickly create and save mapping profiles for your favorite instruments or take control on the fly.
- Customize sound profiles for each track’s pattern.
- Implement parameter locking for added control.
* FACTORY PROFILES COMING SOON
[Enhanced User Experience]
- Updated Graphics:
- New vertical orientation.
- Customization options available in global settings.
- Updated views designed for a more efficient workflow.
-Additional Copy / Paste Options:
- Use page graphic buttons for easy copy and paste.
- Quick paste: Press an empty trig while still holding copy for faster workflow.
- Copy/Paste bars using loop keypads.
- Double Tap to Reset: Easily reset parameters with a double tap.
1.066 2024/08/27
What's New in Prism
64-Trig Mode:
Go from 16 to 64 trigs in a full-screen view built for fast sequencing and p-lock editing. Hold shift and press the full screen button that appears beneath the main sequencer trigs.
Slim Sequencer View:
Drag to a narrow layout for a 32-step view that sits alongside your AUv3 plugin. Sequence and tweak at the same time.
Draw Your Own LFO Shapes:
Draw LFO waveforms freehand. Link the cycle to your sequence length and set loop count — great for risers and sweeps that stay locked to your pattern.
Smoother Pattern & Scene Switching:
Patterns and scenes transition musically now, whether quantized to bar or not. Long-press to preview a pattern or scene, release to snap back.
Drum Randomization:
Randomize a full pattern or just a section. Pick a genre preset, remix what's there, or go fully random.
GM Drum Type Tagging:
Assign a standard GM Drum type to each pad. Randomization and MIDI drum imports use these to map correctly.
Chromatic Drum Keyboard:
Cycle and layer drum pads on a single sequence with the keypad note button. Stack multiple pads, multiple hits per trig, full chromatic range at any position.
Melt Capture:
Hit capture on a melting track to write the results into the sequence.
Step FX + Melt Mode:
Step FX now works on melting tracks.
Drum Layering & Sidechaining:
Layer pads with per-pad velocity offsets. Sidechain support for drums added.
P-Lock Smoothing:
Per-trig parameter lock smoothing for more natural modulation.
Simpler Piano Roll:
Drag to select, drag to move, two-finger drag to resize.
Bug fixes, CPU improvements, and visual cleanup throughout.
更多 版本 2.05 6月24日
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