Developer Jeff Holtzkener has updated Concentric Rhythm – an interactive tool for creating sequences and exploring the geometry of rhythm – adding Audiobus, MIDI Out support and more.
Concentric Rhythm visualizes looping sequences as a circle, which allows you to treat musical patterns as concentric shapes. This makes performing geometric transformations such as rotations, reflections and folding natural and intuitive.
It also provides tools for melodic lines such as random-walk generation, scale-based inversion and transposition. You can generate rhythmic lines using cross-rhythms or the Euclidean algorithm, and allows for great visualizations of complex polyrhythms.
Concentric Rhythm now allows you to assign each pattern to a different MIDI channel and send your results to other MIDI compatible apps or devices.
Concentric Rhythm was originally developed as a new way to improvise electronic music, but it is also a great tool experimenting with and developing musical material, or just for casually playing with music in a unique, hands-on, way.
Many of the ideas here were inspired by the book The Geometry of Musical Rhythm and this app is a powerful tool for exploring these ideas.
Here’s what’s new in version 2.0:
- Inter-App Audio and Audiobus Compatibility
- MIDI Send (as IAP)
- Landscape for iPad
- Completely redesigned Note List now integrated into main display
- Velocity based transformations
- Global reverb control
- User sample management
- Improved system for project saving
- Tempo calculations based on user selected meter
Pricing and Availability
Concentric Rhythm is available as a freemium app – free to download and use, but MIDI Send support is a $4.99 In-App purchase.
Note: Synthtopia is generally opposed to treating MIDI as an optional add-on – in apps and in hardware – because there are benefits to shared standards and because making MIDI support an option can make it impossible for some users to test an app to see if it will meet their needs. The In-App purchase price seems quite reasonable for this app’s capabilities – we’d just prefer to see developers identify other features than MIDI support to treat as premium features.
If you’ve tried Concentric Rhythm, leave a comment and share your thoughts on it!