Your all-in-one practice tool for every musician — from beginners exploring their first scale to seasoned players diving deep into world music theory.

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**Scales & Modes, Visualised**
Explore Western scales and modes — Major, Minor, Pentatonic, Blues, and Chromatic — displayed in real time across a piano keyboard, bass fretboard, guitar fretboard, and Oud simultaneously. See exactly where every note falls, colour-coded with interval labels so theory clicks instantly. Hit Play to hear any scale ascend and descend, or compare two scales side by side to see how their interval patterns differ.

**Arabic Maqamat — with Microtonal Support**
Go beyond Western music with a full library of Arabic Maqamat: Rast, Hijaz, Kurd, Nahawand, Saba, and Ajam. Quarter-flat (microtonal) notes are fully supported and clearly marked — rare in any music app, let alone a free one.

**Diatonic Chords**
Tap CHORDS on any scale and instantly see all seven diatonic triads — major, minor, and diminished — each visualised on a mini piano and guitar diagram. Switch between root, 1st, and 2nd inversions. Tap to hear the chord.

**Chord Progression Builder**
Build your own progressions by tapping scale-degree chords onto a track — reorder them, swap in 7th/9th/add9/sus2/sus4 variations, and play the whole thing back.

**Song Examples**
Browse 40+ curated real-song progressions, each mapped to its actual scale-degree pattern and key — see and hear exactly how the song is built.

**Guitar Screen**
A dedicated guitar view with CAGED box positions, scrollable inline chord cards, and common diatonic progressions — all pre-loaded with your current key.

**Ear Training**
Train your ear with interval recognition, scale degree identification, chord quality detection, and Arabic Maqam identification. Streak and score tracking keep you motivated.

**Fretboard Quiz**
Name the note at a given fret, or find it on the neck. Covers guitar and bass, all 12 frets, with instant visual feedback.

**Oud Fretboard**
Full Arabic Oud fretboard visualisation in 5-string and 6-string modes — especially powerful for Maqam modes where microtonal dots show quarter-flat positions.

**Circle of Fifths**
An interactive Circle of Fifths — tap any key to jump directly to that root in the Scales screen. Each key shows its relative and parallel key, plus a full table of that key's diatonic chords, colour-coded by quality.

**Chromatic Tuner**
Real-time pitch detection using your microphone. Clean needle gauge with note name, octave, and cents offset. Works offline with no latency.

**Metronome**
BPM control, tap tempo, accent beat, and subdivision labels (1 beat, ½ beat, ⅓ beat, ¼ beat) — everything you need for focused practice.

**Dark & Light Theme**
A carefully designed interface that looks great in both modes.

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Free: Major, Minor, Major Pentatonic · All chord diagrams · Guitar screen · Ear Training · Fretboard Quiz · Tuner · Metronome · Progression Builder (up to 2 chords) · 6 Song Examples
Pro ($9.99 one-time): Minor Pentatonic, Blues, Chromatic, all 6 Maqam modes · Scale Finder · Unlimited favorites · Full Progression Builder (unlimited chords + all variations) · All 40+ Song Examples