MTH Jazz Play-along is an easy-to-use play-along app that offers musicians incredible backing tracks with pro sound. The accompaniment uses advanced A.I. players that replicate different comping styles based on music theory and harmony.

An easy-to-use U.I. ideal for Mapping Tonal Harmony Pro users who just want to use the play-along feature and an excellent free option for those who want to experience our best play-along so far.

IN-APP PURCHASES AVAILABLE: 1300+ Jazz Standards • Bird Bebop Standards
Mapping Tonal Harmony Pro users that already own these add-ons can download MTH Jazz Play-along and have instant access to the entire song catalog in MTH Jazz Play-along.
"Yes, MTH Jazz Play-along will automatically import the jazz standards and bebop progressions you have already purchased in Mapping Tonal Harmony Pro. And yes, if you get these add-ons using MTH Jazz Play-along they will be instantly available when you buy Mapping Tonal Harmony Pro."

This free version is limited to jazz performance and practice. It includes jazz exercises, standard song forms such as Blues, Rhythm Changes as well as some complete jazz standards progressions. Full harmonic analysis, functional harmony map, song editor and tools such as guitar fretboard, voicings & scales keyboards, history staff, 12-key workouts, reharmonizer, upper structures & target notes are only available in Mapping Tonal Harmony Pro.

The backing tracks in MTH Jazz Play-along use the same AI technology as in the pro version app: Mapping Tonal Harmony Pro which creates coherent and musical accompaniment tracks based on the harmonic progression of the songs (rather than a list of chords as all other apps do)

The music charts offer, not only the chord changes, but also guitar diagrams and the best chord-scale for every chord in the song.

The complete Jazz Standards repertoire and all Charlie Parker songs are available through the in-app purchases (with more than 1400 songs) The charts are stored using harmonic functions which allows MTH to create amazing accompaniment tracks and simulate different piano and guitar players.

You can also GO PRO with Mapping Tonal Harmony Pro, the most advanced music tool for musicians out there. Mapping Tonal Harmony Pro not only includes all the features in the MTH Jazz Play-along but it also offers a wide variety of music tools for teachers and students alike such as: editing and creating songs, all styles from Classical to Rock/Pop to Gospel, charts with full harmonic analysis, an Interactive Harmony Map, Instruments panels, guitar fretboard, piano fretboard, history staff, voicings, reharmonization tools, 12-key workouts, target notes, upper structures and much much more... Find Mapping Tonal Harmony Pro on the AppStore to learn more.

All the songs you purchase using the add-ons in MTH Jazz Play-along will be immediately accessible in Mapping Tonal Harmony Pro and vice-versa.

What’s New

Version 10.17.2020

UI Improvements

Ratings and Reviews

4.3 out of 5
6 Ratings

6 Ratings

chayjazz ,

The option to change bass line

I really like this app but it would be great if there was an option to change the bass line pattern on the 1st and last chorus. The 2 beat feel is just not appropriate on so many of the songs. It definitely doesn’t fit when playing the melody of most bebop songs.
Other than that tiny annoyance I’m really enjoying the app!

App Privacy

The developer, MDECKS MUSIC, LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


290.3 MB

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. 1000+ Jazz Standards $19.99
  2. Bird Bebop Progressions $9.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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