New Interval Practice mode — ear-training exercises with answers from the piano, MIDI, or table, exercise settings, visual correction, scoring, and result review. New Note Detection mode — identify the last note played from the piano or MIDI, view it on the correct staff clef, and replay, clear, or hide its name for learning purposes. Chord Detection and Interval Detection now include an eye-icon button to hide detected information for learning purposes and reveal it again to check your answer. Chord Generation can now show the left hand, right hand, or both on the piano and staff. Instrument and guitar-orientation controls are simplified into toggle buttons. Higher overall audio level on desktop while preserving safe headroom for chords. Fixed: tapping the piano or staff in Interval Generation could stop producing sound after the first note.

Added new add2, add4, minor add2, and minor add4 chord types. Expanded and reviewed guitar voicings across all twelve keys. Improved guitar chord variants, playback, fretboard display, and automatic variant selection. Grouped scales into theoretical families and added Roman numerals to the seven Greek modes. Corrected key signatures for Dorian, Phrygian, Lydian, Mixolydian, and Locrian modes. Added separate selectors for natural notes and accidentals when choosing a tonic. Added detailed theory help for detected chords and clearer chord descriptions. Sharps and flats are now highlighted in the key signature during interaction and playback. Improved beaming and stem direction for eighth and sixteenth notes. Improved mode switching, chord playback performance, interval playback, and scale interaction. Includes additional visual improvements and reliability fixes across the app.

- The app now remembers the last mode you were using (Detection, Generation, Scales...) when you reopen it, with the same menu order as the desktop app. - Circle of fifths: more natural gesture — tap picks a diatonic chord within the key, long-press changes the key. - MIDI output now actually sends notes to your connected MIDI device with the correct instrument (piano or guitar), instead of always playing through the device speaker. - The metronome keyboard stays interactive — press notes while it's running, from touch or a MIDI keyboard. - Fixed a few layout issues on iPhone and in the What's New and Settings dialogs.

Fixed chord detection: chords like Am7 are no longer confused with C6 when they share the same notes Detected chords now show a full description (e.g. "Minor 7th, first inversion") Scale fingering improvements: active finger highlight during playback, new help tooltips for octaves and fingering

iPhone support: the app now runs properly on iPhone with an iPhone‑specific layout and improved UI scaling. Improved audio on iOS: better audio startup behavior and metronome playback on iPhone/iPad. More natural piano feel: notes don’t cut off as abruptly when lifting your finger (smoother “release”). Reduced audio clipping/saturation: lower gain on iOS (especially for the piano) for a cleaner sound. Sample playback improvements: better pitch handling for sampled instruments (piano/guitar). Help & onboarding refinements: improved in‑app help overlays and metronome help layout on mobile.