Chromatone for Apple app for iPhone and iPad
Chromatone is a beautiful ear calibration training app based on assigning specific colors to individual notes.
Featuring both practice and test modes, Chromatone is the perfect companion for musicians and music lovers alike. Improve your active listening skills with proven color based memorization. By mapping specific colors to each of the 12 notes in an octave, your brain will associate the colors and notes thereby improving your ear calibration.