Tonality Visualizer vs FretTrainerEZ

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

Know every note on the neck — cold. FretTrainerEZ is the no-fluff fretboard trainer and music theory toolkit built for guitarists who are serious about mastering the fundamentals. Whether you're just starting out or you've been playing for years and still hesitate on the higher frets, FretTrainerEZ drills the knowledge in fast — and gives you the tools to go deeper. THREE TRAINING MODES • Name It — A note lights up on the fretboard. You name it. • Find It — A note name appears. Find every position on the neck. • Memory Challenge — Positions flash briefly, then disappear. Tap what you remember. Practice at your own pace or race the clock in Timed Mode (30s, 1 min, 2 min). Three difficulty levels — Beginner (frets 0–5), Intermediate (0–10), and Advanced (full 22-fret neck). MUSIC THEORY TOOLKIT • Circle of Fifths — Tap any key to instantly see tonic, subdominant, and dominant chords, diatonic chord pills, and common progressions with real chord names. • Chord Charts — Diagrams for 70+ voicings across all 12 roots: major, minor, dom7, maj7, m7, sus2, sus4 — with degree names, intervals, and chord tone breakdowns. • Chord Jam — Build your own progressions, drag to reorder, tap to play. • Scale Explorer — 10 scales including Pentatonic Minor, Blues, Dorian, Mixolydian, Lydian, and more — mapped live on the fretboard for every root. • Chromatic Tuner — Real-time pitch detection with a precision cents meter. No internet required. BUILT RIGHT • Karplus-Strong string synthesis — note audio that actually sounds like a guitar • 5 wood fretboard themes: Rosewood, Maple, Ebony, Walnut, Midnight • Sharps or flats — your choice, applied everywhere • Haptic feedback on correct answers • Fully offline — no network calls, no analytics, no tracking • Zero ads. Zero subscriptions. Buy once, own it forever. Buy it once. Own your fretboard.