https://serendip.peckels.com/zats/30method/learningapps/ In this selection of music apps that I use regularly, only a few offer random functions. Those are most often found in creative rhythm apps and not in the ones designed for practicing. Some melody and harmony training music apps rely on randomly generated exercises to train pitch or chord hearing (e.g., EarMaster). Ear Training Apps EarMaster It has random flashcard-like functions for training intervals, scales, chords, etc. Hugo en-us