JJazzLab
!! The german documentation might not be updated with the latest version JJazzLab 4 !!
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What is JJazzLab?
🎵 JJazzLab is a desktop application which automatically generates backing tracks for any song, even complex ones. It’s a jam buddy to have fun improvising at home, learn new stuff or just practice your instrument. It’s also a great tool for teachers.
🎷 JJazzLab is designed to make non-boring backing tracks, backing tracks with variety, rhythmic accents and dynamics. You can start a solo slowly and gradually build up the atmosphere!
💻 JJazzLab is open-source: platform developers can easily add new features and new music generation capabilities.
Features
Backing tracks
Instant generation of a Midi backing track with drums, percussion, bass, piano, guitar, pad, horn section, …
Fine tuning of the backing track per song part: rhythm variation, intensity, muted instruments, drum fills, tempo factor, custom phrases, drums transform…
Play from anywhere, loop selected bars
Play transposed (e.g. for sax or trumpet players)
Any song structure: intro, chorus, 1st coda, etc.
Adjust tempo, transposition, choose and solo/mute instruments
Import user tracks
Support for multi-rhythm backing tracks, possibly with different time signatures
Export to Midi file, the full backing track or a single instrument track
Easy Midi-to-MP3 conversion via export to Midi file
Customizable click and pre-count
Editors
Chord lead sheet editor, song structure editor, chord symbol editor, mix console, song memo editor
Multi-file editor with dockable windows
Intuitive user interface with unlimited undo/redo, copy/paste between songs
Free placement of the chord symbols (quantified or not), off-beat chord symbols anticipation
Support all pop-rock and jazz chord symbols, plus user-defined chord symbols
Edit chord symbol musical rendering: underlying harmony, accent type, harmony variation during solos, chord symbol substitution, …
Drag & drop support to import/export Midi files
Customizable song template
Customizable UI colors and fonts
Print chord lead sheet and song structure
Rhythms
Support for Yamaha style files (SFF1 & SFF2 format), access to thousands of free styles on the web
Hundreds of embedded rhythms in the installer
Support for “YamJJazz Extended Yamaha" style files for even more variations per style
Open architecture: new rhythm generation engines can be easily added via plugins
Notes viewer
Show backing track notes in real time
Show selected chord symbol notes and scales
Piano keyboard
Guitar diagrams with most common chords, open/close voiced chords, inversions
(pseudo) Arranger keyboard mode
Recognize chords played on Midi IN and update the backing track in (pseudo) real-time
Improvisation help
Automatic generate improvisation guides on your chord leadsheet
Based on Hal Crook's reference book "How to improvise"
Midi
Connect to any audio engine via Midi: SoundFont player (recommended with the JJazzLab SoundFont), Java internal synth, external synth, VST host via virtual Midi port such as ‘LoopBe1’
Compatible with GM/GM2/XG/GS instruments
Compatible with any Midi instrument via Cakewalk instrument definition files (.ins)
Automatic drums/percussion drum map remapping from Yamaha XG key map to GM/GM2/GS key maps
Optimized JJazzLab SoundFont for a high-quality rendering and automatic instrument selection
Ready-to-use presets for VirtualMidiSynth (Windows) and FluidSynth (Linux)
User-defined default mix per rhythm
User-defined default instruments
Import
Band-In-A-Box lead sheet files
musicXML lead sheet files
Impro-Visor lead sheet files
Miscellaneous
Song memo with hyperlinks opened upon song loading
Easily add new features thanks to the open-source pluggable architecture
Based on the Netbeans application framework
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