mDecks Apps

Interactive tools for harmony, practice, and ear training.

Choose the app that fits your current goal — analyzing progressions, mastering scales in all keys, or leveling up your ears.
Quick pick
  • Harmony / analysis → MTH Pro
  • Scales / patterns → Tessitura
  • Ear training → Politonus

Apps for Musicians

Tap an app to see the full landing page.
Mapping Tonal Harmony Pro
Mapping Tonal Harmony Pro
Interactive harmony map for analysis, chord-scales, and reharmonization.
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Tessitura Pro Scales
Tessitura Pro Scales
Scales, patterns, and structured practice systems to build fluency.
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Politonus Ear Training
Politonus Ear Training
Train multi-pitch hearing: intervals, chords, and scales/modes (I, II, III).
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Compare

App Best for Core features Platforms
MTH Pro Harmony / analysis / reharmonization Harmony map, chord-scales, backing tracks, analysis tools iOS, macOS, PDF
Tessitura Scales / patterns / practice systems Circle visualization, workouts, pattern tools, lessons Universal (iOS + macOS)
Politonus Ear training Multi-pitch, intervals/chords, scales & modes iOS (I), iOS+macOS (II, III)