Music Apps & Books

mDecks Music - Apps & Books for Musicians
mdecks music theory apps icon

Music Apps

Best Interactive Music Apps. From tonal harmony, music scales & modes to sight-reading and ear training. Study Music Theory like never before with our apps.


mdecks music theory books icon

Music Books

Music Books from Decoding the Circle of Fifths, Music Theory, Upper Structure Triads, Tonal Harmony to Piano Technique, Doubling on Woodwinds, Rhythmic Training.


mdecks youtube music channel icon

Music Theory Channel

Free Online Music Lessons & Tutorials. From Reharmonization Techniques, Advanced Jazz Chord-Scales to Decoding Beethoven.



Essential Voicings For Jazz Piano

A complete course on 4-note rootless voicings. Soon to be available.

Mapping Tonal Harmony Pro 8 for iOS

NOW AVAILABLE!! Mapping Tonal Harmony Pro 8 iOS version

New play-along features and A.I. players in version 8. Compare Mapping Tonal Harmony Pro with iReal Pro

The Complete Collection of Jazz Standards Progressions Fully Anlayzed

NEW: The 2nd Edition is Now Available!!!

Watch the video to learn what's new in the 2nd edition.

CryptoChords - Interview with Adam Turano

What Is CryptoChords?

Season 1 Episodes 1 & 2 Now Available
Music Theory and Practice Channel. On going Youtube series.

Double Time Jazz Lines

Are you following our series on Double Time Jazz Lines?
If you are looking for the Conceptual Chart in pdf format you can click here: CONCEPTUAL CHART FREE DOWNLOAD.PDF

Music Theory Channel with plenty of Music Resources & Lessons

Let's talk about Music

Subscribe to our Music Theory Channel and get notified when we upload new content and series.

Advanced Musician's Toolbox 2 (iOS)

Four Music Apps every musician should have.
• Mapping Tonal Harmony Pro (Play-along, Music Theory & Tonal Harmony)
• Tessitura Pro (Scales, Modes & Melodic Patterns)
• See Music Pro (Sight-reading)
• Politonus I (Ear Training)

What Critics Say.

  • “...Mapping Tonal Harmony Pro wins our strongest recommendation for an app so far.”

    The Berklee Groove
    Berklee College of Music
  • “A must have for all musicians, music students, teachers.” (Tessitura Pro)

    A. Kaskel
  • “ app that blew my mind!” (Mapping Tonal Harmony Pro)

    Damian Erskine
  • “"See Music is the most comprehensive and well thought out system for learning how to sight read."”

    NYU Composer

Subscribe to mDecks Music

Find out about special offers and giveaways. Receive latest news on new Music Apps, Books & Free Lessons/Series on our mDecks Music Channel

mDecks Music Store

Music Theory Apparel, Wall Art & More

You Found Us...

Why not share?

Our Best Selling Apps

4 Music Theory Apps you didn't know existed and will take your music knowledge to the next level in no time. Click on any of the icons to learn more.

Mapping Tonal Harmony

Tonal Harmony, Chords & Cadences

Tessitura Pro

Scales & Modes

See Music Pro



Ear Training