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About HarmonyX Music Theory & Compo

HarmonyX - Your Music Theory Assistant



Compose, analyze, and explore harmonies and melodies effortlessly with HarmonyX!

HarmonyX is a mobile app designed for musicians, composers, and music enthusiasts. Whether you're crafting a new piece, searching for the right chords, or exploring musical scales, HarmonyX provides intelligent assistance to enhance your creativity.

๐ŸŽผ Key Features:



๐ŸŽต Note Selection Matrix
- Choose notes to build and create chords or melodies
- Identify matching chords and scales instantly

๐ŸŽถ Chord Detection & Analysis
- Automatic recognition of major, minor, 7th, 9th, and more complex variations
- Dynamic display of compatible scales

๐Ÿ› ๏ธ Useful Tools
- Adjust tempo, octave, note duration
- Choose instrument for playback
- Detect notes played on your instrument via microphone
- Circle of 5th (coming soon)

๐ŸŽน MIDI Database Search
- Find public domain or royalty-free MIDI songs that match your selected notes
- Listen to MIDI previews

๐Ÿค– AI-Powered Note Suggestions
- Get smart recommendations for chord extensions and melodic sequences
- Customised AI suggestions based on your musical style

๐ŸŽต Unleash Your Creativity with HarmonyX!



Download now and elevate your music composition process with the power of AI. ๐Ÿš€

๐Ÿ” Keywords & Tags


Looking for a music theory app? HarmonyX is your ultimate tool for:
- chord progression builder
- scale finder
- melody generator
- AI music assistant
- MIDI search tool
Whether you are a beginner or professional musician, HarmonyX helps you compose smarter and is ideal for anyone exploring chord progressions, scales or melody generation..

What’s new

Version RC11.43 ยท Updated October 18, 2026

RC2.2

Alternatives to HarmonyX Music Theory & Compo

Looking for apps like HarmonyX Music Theory & Compo? Here are 5 similar Android apps on Google Play. The highest rated is Whispering Eons Season 1 (4.4/5), and 4 of the 5 are free to download.

HarmonyX Music Theory & Compo vs. alternatives
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HarmonyX Music Theory & Compo โ€“ Free 500+ Oct 18, 2026
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Whispering Eons Season 1 4.4 / 5 Free 1,000+ Apr 3, 2021 Compare
Whispering Eons #0 (VR Cardboa 4.2 / 5 Free 100,000+ May 24, 2019 Compare

Compare HarmonyX Music Theory & Compo with the top alternatives: ratings, updates, ASO score and keyword gaps โ†’

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