Musician's Little Helper.
A versatile companion for you hardware instruments.
Features
Workbenches
A wide range of useful tools related to hardware synthesizers and grooveboxes.
Multitrack
Record each track separately from your hardware synth, latency-corrected and ready for your DAW.
Overview
- Automatically record projects consisting of multiple patterns
- Use the device's stereo USB-audio or any channel on your audio-interface
- Optionally record MIDI tracks in parallel
- Latency-corrected recordings with automatic base detection
- Saved presets per device, including audio setup
Details
- Touch device friendly with quick access buttons
- Bank and pattern selection directly in GUI
- Recording status and time remaining display
- Export to files or internal editor
Supported Devices
Multitrack works with the following hardware
OP-Z
- Record eight separate wave tracks and MIDI files
- Single or multiple patterns in project mode
- Disable any MIDI or audio effect tracks for recording
Model: Series
- Record six separate wave tracks and MIDI files
- Single or multiple patterns in project mode
- Select patterns remotely via GUI
Octatrack
- Record eight separate wave tracks and MIDI files
- Single or multiple patterns in project mode
- Select patterns remotely via GUI
Community
- Devices implemented with community feedback
- Requires CC mute command and program-change for pattern-based devices
- Multi-sampling works for most MIDI-based synthesizers
- OP-XY, TE EP-133 KO II, Microfreak, Cat
Experimental
Test preset for OP-XY included.
Autosampler
Transform your analog synths and Eurorack patches into multi-sampled instruments automatically.
Overview
- Record presets into multi-sampled instruments
- Export to sliced waves or SFZ sampler format
- Up to four layers of velocity per note
- Autoslicing with onset detection for ideal note starts
- Automatic loop detection and tune correction
Details
- Send results to internal editor for adjustments
- Per-device preset settings with time display
- Adjustable decay time per note
- Works with any MIDI-receiving synthesizer
Live
Capture live performances with full MIDI tracking, pattern changes, and control movements.
Overview
- Record live performances in stereo wave and MIDI
- Tempo-synced editable MIDI with all channels
- Integrated soft limiter for even loudness levels
- Multiple takes saved before export
Details
- MIDI note display with controller movement
- Detailed I/O levels with peak warning
- Not limited to specific devices
Editor
Analyze, shape, and transform your audio with a comprehensive set of editing tools.
Overview
- Analyze with waveform and spectrum view
- Shape with normalization, EQ, compressor and trim
- Extract via Drum Slicer for kit creation
- Separate harmonic from percussive content
- Convert to hardware sampler formats
- Detect notes and chords
Details
- Non-destructive workflow — all steps preserved
- Multiple export formats: wave, sliced, aif, SFZ
- File-based and device independent
Drum Recycler
Decompose old drum samples and fuse them into entirely new sounds.
Overview
- Decompose old drum samples into Hit and Tone elements
- Fuse harvested elements into new drums
- Build a local library of favorite elements
- Sculpt drums with specialized effects even further.
Details
- Combine acoustic and synthesized drums without interference
- Automatic level adjustment during decomposition
- Automatic sample audio characteristic matching
Support
Resources
3D-Printed Hardcase
Free protective case for your OP-Z. Click to preview.
Available in the download section.
Choose Your Edition
Get Underbridge
Professional multitrack and stem export tools for Teenage Engineering OP-Z, Model:Series and Elektron Octatrack.
Underbridge Pro 2
Full-featured multitrack and stem export for OP-Z, Model:Series and Octatrack. Includes Autosampler, Editor, Live and Drum Recycler.
Buy Now
- All devices: OP-Z, Model:Samples, Model:Cycles, Octatrack
- Autosampler, Editor, Live & Drum Recycler
- macOS, Windows, Linux support
- 10 activations · 30-day money-back guarantee
- Free updates within 2.x series
System Requirements
macOS 15 Sequoia / 14 Sonoma (Apple Silicon arm64)
macOS 13 Ventura (Intel) — limited support
Ubuntu, Arch Linux
Windows 10, 11
Minimum: Intel i5-2520M, 4GB RAM, USB port
Licensing & Activation
Online activation required
10 activations per user (more available on request)
30-day money-back guarantee
Underbridge Light
Essential multitrack export for OP-Z. Open-source under GPL v3 — download and use at no cost.
Download
- OP-Z multitrack export
- macOS, Windows, Linux support
- Open source (GPL v3)
- No activation required
System Requirements
macOS 15 Sequoia / 14 Sonoma (Apple Silicon arm64)
Ubuntu, Arch Linux
Windows 7, 10, 11
Minimum: Intel i5-2520M, 4GB RAM, USB port