JJazzLab 4

A complete and open application for backing tracks generation.

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JJazzlab 4

In JJazzLab "rhythm" usually means a music style, like pop or bossa-nova.

What is JJazzLab?

🎵 With JJazzLab you quickly create backing tracks for any song, even complex ones. It’s a jam buddy to have fun practicing at home or learn new stuff. It’s also a great tool for teaching or early-stage composing.

🎷 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 with an open architecture: developers can easily add new features and new music generation capabilities.

Getting started

Install and run JJazzLab, then :

1. Load an example song file : menu File/Open Songs... and select ExampleFiles/BluesMinor.sng

2. Press the Play button : you should hear the backing track -if not, check the Midi Out device in menu Tools/Options (Preferences on Mac)

3. Start editing the song using the editors and hear how it impacts the generated backing track.

If you prefer to quickly create a new backing track from scratch, check out this video:

Key features

• Hundreds of ready-to-use music styles (rhythms) available
• Introduce dynamics and variety in just a few clicks, for example:

  • mute the guitar in the intro

  • add a break at the end of the 2nd verse and congas in the 3rd verse

  • boost intensity and slightly increase tempo at the end

  • add anticipated chords

  • simplify the piano on the first verse

• Add user tracks to customize your backing track
• Attach annotations/lyrics to bars
• Play transposed (for sax, etc.)
• Use Midi remote commands to control playback
• Import and export song or individual instrument tracks

Side tools

• Easy Reader window: shows the playing chords (and annotations/lyrics) with a large font
• Chord inspector: shows selected chord symbol notes and scales (piano, guitar diagrams, score)
• Arranger keyboard mode: control backing track in (pseudo) real-time via a Midi input device
• Improvisation help: generate improvisation guides on your chord leadsheet