Видео с ютуба Politonus

Politonus(폴리토누스) Chromatic multi-octave 5 note(fixed Do)

Politonus III demo: Ear Training (Scales & Modes) Best Ear Training Method Ever!

Exploring Politonus III: Your Ultimate Ear Training App for Scales & Modes by mDecks Music

Charlie Banacos | Best Ear Training Method Meets A.I. in Politonus | Ear Training App

Politonus II: Ear Training w/Machine Learning (Intervals, Triads & Seventh Chords)

Politonus II Ear Training by mDecks Music. Available on the AppStore