Octave is a focused scales-and-modes trainer for musicians, students, and producers who want to internalize the building blocks of music — one octave at a time. Pick a key, pick a mode, set a tempo, and Octave plays the scale back to you with a clean synthesized piano sound while a virtual keyboard lights up each note. Loop it, change direction, or stretch it across multiple octaves until the shape lives in your fingers. KEY FEATURES • All 12 keys (C through B, sharps and flats) on a single screen • All 7 diatonic modes: Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian • Built-in metronome from 40 to 200 BPM with a single drag of the dial • Live keyboard view that highlights every active degree as it plays • 1, 2 or 3 octave practice range • Up, Down, or Up-Down direction with optional loop • Browseable Library: tap any key × mode combo to see the notes and intervals • Interval map (W/H steps) so you can see and hear the formula • Sample-accurate timing — the click and the note land together WHO IT IS FOR • Piano students drilling major and minor scales for exams • Guitarists trying to finally hear the difference between Dorian and Aeolian • Producers writing melodies that need to stay inside a chosen mode • Anyone returning to music theory who wants a quiet, modeless practice tool PRIVACY No accounts. No tracking. No network calls. Everything stays on your device.
