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Katz Praatz 'Jazz Sketch (ver. 1.4)': A Simple Chord Sequencer for Sketching Music with 744 Jazz Progressions and 168 Tension Chords

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The Music Telegraph
Text 2025-07-11

 

© Katz Praatz



Katz Praatz 'Jazz Sketch (ver. 1.4)': A Simple Chord Sequencer for Sketching Music with 744 Jazz Progressions and 168 Tension Chords

 

 

Musician and hobbyist programmer Katz Praatz has announced the release of Jazz Sketch version 1.4. This update adds 192 new chord progressions to the previously available 552 in version 1.3, bringing the total to 744 jazz chord progressions.

 

Jazz Sketch (ver. 1.4) is a simple chord sequencer designed to help you create music by arranging 744 jazz chord progressions and 168 tension chords. You can export the chord sequence (the chord progressions and chords you've arranged) as a MIDI file to play it or edit it in your DAW. With Jazz Sketch, you can create sophisticated, jazz-infused song with ease. Additionally, Jazz Sketch allows you to learn jazz harmony by playing it yourself. In fact, Jazz Sketch is a small but highly useful software tool.

 

 

© Katz Praatz



Essential Requirements for Running Jazz Sketch

Jazz Sketch is a software written in JAVA, and the file extension is .jar. By default, Jazz Sketch runs well on any computer that has JAVA or JRE (Java Runtime Environment) version 8 or later installed, regardless of the operating system—for example, Windows, MacOS, or Linux. If your computer does not have JAVA or JRE installed, or if JAVA is installed but the version is earlier than 8, please click the link below to download the JAVA 8 compatible with your computer's operating system:

 

https://www.java.com/en/download/manual.jsp

 

* In the Windows download section, choose the Online download for the fastest install experience. Choose the Offline download if you will be installing on a machine without an internet connection, or you are having problems with the Online install.

 

** If your macOS version is 10.7.3 or later but earlier than 12, click on macOS x64 to download. If your macOS version is 12 or later, click on macOS ARM64 to download.

 

 

Features

  • A chord sequencer designed to help you create sophisticated, jazz-infused music by arranging 744 jazz chord progressions and 168 tension chords
  • Can also be used for practicing jazz harmony
  • The provided chord progressions incorporate standard 2-5-1 progressions, tritone substitutions, secondary dominants, and secondary subdominants
  • Can export the chord sequence that you arranged as a MIDI file to play it or edit it in your DAW
  • Written in Java, and requires JAVA or JRE version 8 or higher installed to run

 

** Jazz Sketch is a standalone software, not a plug-in. Therefore, it operates independently of the user’s DAW (Digital Audio Workstation).

 

 

System Requirements

  • A laptop or desktop computer with a monitor of 13 inches or larger  
  • Supported OS: Any version of Windows, Mac OS X, and Linux  
  • Tablet PCs that do not use Windows or Mac OS X as their operating system are not supported (e.g., iPad, Galaxy Tab)

 

 

Price

$5.99 USD

 

 

For more information on 'Jazz Sketch (ver. 1.4)'

 

 

 

Creating Music with Jazz Sketch (ver. 1.4) 

  

  

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