JJazzLab-X
JJazzLab-X is a Midi-based framework dedicated to backing tracks generation -some people talk about "play-along songs" or “auto-accompaniment applications”. You type in chord symbols, select a rhythm (style), then the application generates a complete backing track with drums, bass, guitar, piano, strings, etc.
The objective is to develop a jam buddy able to quickly generate intelligent and interesting backing tracks: realistic and non-boring backing tracks which you can easily adjust to a specific song.
The JJazzLab-X UI:
Example
To see the JJazzLab-X capabilities download and try the JJazzLab application at www.jjazzlab.com, it's a JJazzLab-X distribution which bundles the YamJJazz music generation engine based on Yamaha style files. You can also check out the demo videos: JJazzLab YouTube channel.
Architecture
Develop your own music generation engine without hassle
Thanks to JJazzLab-X developers can save a huge amount of work by only focusing on their music generation engine. Out of the box, the JJazzLab-X framework provides all the infrastructure, all the “plumbing” that, before, every developer had to write themselves.
JJazzLab-X can host any number of music generation engines as plugins. What happens when you load a song file and press the Play button?
- The framework shows the song in the editors
- The framework sends Midi messages to initialize the connected Midi sound device
- When user press Play, the framework sends the song data to the music generation engine
- The music engine uses the song data to generate the Midi data for the backing tracks
- The framework retrieves the Midi data and plays it
Easily add new features
JJazzLab-X is based on the Netbeans Platform (now hosted by the Apache foundation). It provides a reliable and extensible application architecture.
The Netbeans Platform turns JJazzLab-X into a pluggable application where plugins can be installed or deactivated at runtime. Plugins can easily add/alter features and insert UI elements such as menu items.
For example suppose that you work on reharmonization algorithms (e.g. replace | A7 | D7M | by | Em7 A7 | D7M). It's easy to add a feature which propose possible reharmonizations when user selects multiple chord symbols. You'll just create a new action class which implements the algorithm on the current chord symbols selection, and "connect" (via annotations, no code required) this action to a new menu item in the Chord Symbol popup menu.
Installation
If you're looking for a binary distribution visit www.jjazzlab.com.
To build from source code see the Developer's guide below.
License
Lesser GPL v3 (LGPL v3), see LICENCE file.
User guide
https://jjazzlab.gitbook.io/user-guide/
Developer's guide
https://jjazzlab.gitbook.io/developer-guide/
Contact
For more information use the Contact page at www.jjazzlab.com