Genius Jamtracks12.3 - App Store

The new way to practice jazz.

Genius Jamtracks is a play along app for jazz musicians that thinks and plays like a real trio. With realistic sound, dynamics, and feel, it helps you build repertoire, jazz vocabulary, and rhythmic mastery.

Practice with a band that reacts musically, not mechanically.

Explore and connect
. Explore an expanding playlist library
. Create an account to unlock the full catalog
. Sync your library across devices
. Share playlists and songs

Why it feels real
. Authentic swing feel that adapts with tempo
. Musical voice leading from piano and bass
. Interactive dynamics, space, and phrasing

Create and customize
. Create and edit your own songs
. Build personal playlists
. Clean, easy to read chord charts

Rhythm and harmony tools
. From simple comping to advanced polyrhythms
. Progressive harmonic levels and reharmonization
. Shape the trio feel from ballads to swing

“Genius Jamtracks is easily the best play along app out there. As close to playing with a real group as you can get from an algorithm.”
Paul Bollenback

Practice smarter. Play deeper.

Version History Improved instrument transposition. Your selected transposition is now correctly restored every time you open the app. 12.3 Jun 26 Fixed an issue where the app was crashing after login on some macOS devices. 12.2 Apr 25 Resolved a macOS issue that caused the app to crash while loading. 12.1 Apr 18 • Fully optimized Dark Mode for late-night practice.
• Added a magnifier to the chord keyboard for users who love zooming into chord details.
• Refined UI across the Mixer, Settings, and Library. 12.0 Apr 2 Fixed a search bug in both the Playlist view and the Search tab.
You can now swipe left on playlist and song names to see options (previously required a long press). 11.10 Mar 31 We fixed a UI bug that was turning Loop markers off. 11.9 Feb 12 • Fixed a transposition bug that could occur when creating or editing a song
• Fixed an issue where playlists didn’t update correctly when adding a new song
• You can now swipe left or right to quickly switch between songs 11.8 Feb 8 • Optimized memory usage for smoother performance
• Improved energy efficiency for longer battery life
• UI improvements across controller views 11.7 Feb 6 Refined UI across controller views.
Swipe the chart to navigate to the next or previous song.
Optimized memory handling for smoother performance.
Improved energy efficiency to extend battery life. 11.6 Feb 5 • UI improvements across controller views
• Minor bug fixes 11.5 Feb 4 • New Style button for faster access
• UI refinements and bug fixes, including an issue that could cause text to disappear while typing in Search, and improved floating tab behavior on iPad. 11.2 Jan 30 A major update introducing accounts, sync, and a brand new Explore experience.

• Create an account to unlock the full Genius Jamtracks ecosystem
• Sync your Library seamlessly across all your devices
• Share playlists with other users
• Automatic cloud backup of your content

New Explore view
Browse official playlists, discover new content, and download what you want to your device. Explore will be updated regularly.

Upgraded Library
• Private and Public playlists
• Share, duplicate, rename, and organize playlists
• Discover and download playlists created by other users

This update lays the foundation for everything that’s coming next. 11.1 12/28/2025 Minor bug fixes and general player improvements. 10.18 05/20/2025 Fixed an issue where songs were unexpectedly shifting up by a half-step in certain cases. 10.16 03/07/2025 Bug fix for repeats and endings while editing a song. 10.15 03/06/2025 Bass enhancements for all styles. 10.14 01/05/2025 Enhanced basslines for fast tempo swing. 10.13 12/15/2024 - Fixed a bug causing the player to stop at medium tempos.
- Improved polyrhythmic choices for Levels 4 and 5.
- Enhanced basslines for medium tempo swing.
- Fixed the reharmonization method for Harmony Levels 4 and 5. 10.12 12/14/2024 A bug causing the app to crash has been fixed. 10.11 12/02/2024 A bug causing the default bass sound to appear as 'unselected' has been fixed. 10.10 12/02/2024 - Bass, piano, and drums sound improvements.
- Changes to all instrument algorithms to improve swing feel and dynamics.
- Added a Tap Tempo button for easier tempo adjustment. 10.9 12/01/2024 - Fixed a bug when saving a song or changing styles.
- Fixed a bug when changing the tempo in the Groupings tab. 10.8 10/27/2024 Bug fix in the loop feature. 10.7 10/23/2024 The long-awaited loop feature has been added! 10.6 10/22/2024 A bug that caused the app to stop unexpectedly has been fixed. 10.5 10/16/2024