Tonality Visualizer vs DegreesToIt

Tonality Visualizer is an interactive polar-pitch map that displays musical notes on a rotating disk. You can connect a MIDI keyboard or open a MIDI file — every note appears in real time. The app helps you see harmony, motion, and chord relationships, even without formal music theory. Main Features •MIDI Input: visualize notes directly from your keyboard or MIDI device. •MIDI File Playback / Trainer Mode: play or practice chord by chord. •Live Sound Option: enable/disable the built-in synth for input playback. •Physics-based Disk Rotation: the disk moves naturally according to musical torque. •Simple UI: switch between water-fixed / disk-fixed anchors, toggle UI visibility, bilingual JP/EN. Perfect for music learners, creators, and anyone who wants to “see” sound. Privacy No data collection. All processing happens locally on your device. License Open-source under the MIT License. Source code available on GitHub. Supported Formats •.mid / .midi files (Format 0 / 1) •CoreMIDI device input

DegreesToIt is a fretboard reference for guitarists who want to see the music theory under their fingers. Identify Chords Tap on a fret board to see what chord that is. Save your favorite chords or explore alternate voicings. Scales 20+ scales — major, minor, pentatonic, blues, the modes, harmonic and melodic minor, exotic, and chromatic. Tap any fret to change the root. Learn the fretboard inside out, relative scale positions, note names. No shapes, no boxes. Explore New Chords Explore by category, swipe through voicings with difficulty ratings, or tap a shape on the fretboard to jump to it. Diatonic Chords See every chord that live in the key. Progressions and Scales Visualize a progression on the fret board. Explore alternative voicings or get scale recommendations to rip your own solo. Built for the way guitarists actually think Four tunings: Standard, Drop D, Drop C, and FACGCE. Left-handed mode. Dark theme. No accounts, no ads.