JJazzLab 4

Fed up with boring backing tracks? Try JJazzLab and make your own dynamic backing tracks in just a few minutes!
"Love it, works as expected, bow, thanks to the author", "Absolutely fantastic app!" (YouTube comments)
Latest news - Jan. 7, 2024

JJazzLab 4.0.2 fixes many bugs from 4.0.1, upgrade is highly recommended.

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Dynamic backing tracks

Start a solo slowly and gradually build up the atmosphere !

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Rhythmic accents

Use chord anticipations and rhythmic accents to spice up the arrangement.

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Benefit from 1000's of free Yamaha style files

JJazzLab can read Yamaha style files. It also introduces new extension files for even more style variations.

A simple and powerful user interface

Type in a few chord symbols, pick up a rhythm, and press start, it’s a matter of seconds. Need more ? Introduce rhythm and intensity variations, custom bass phrases, etc.

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An open platform for developers

Leverage the JJazzLab open-source code to add features and new music generation capabilities via plugins.

Why jjazzlab ?

As a jazz/funk pianist I have tried most of the auto-accompaniment or backing tracks apps (Band In a Box, etc). They are good indeed and I had some fun at first, but I quickly got frustrated: I missed the intensity dynamics which help develop interesting solos. I was aware that a program will never match a real band, but I had a few ideas how to do better. That’s why I decided to start developing JJazzLab.