There's GNU Solfege [0], but I have not really used it (I was a casual piano player that realized theory just gets in the way of fun for me). It has ear trainin

There's GNU Solfege [0], but I have not really used it (I was a casual piano player that realized theory just gets in the way of fun for me). It has ear training for music patterns and has some music theory practice in it. Not sure if it has a mobile version, but it's been around for a long time. [0] https://www.gnu.org/software/solfege/ https://www.gnu.org/software/solfege/