Teaching learners who only learn by sound memory A young ringer at a neighbouring tower learned to ring plain hunt doubles without apparently knowing the bell order or what place he was in. He was about 11 at the time, musically gifted with almost perfect pitch but assessed as not on the spectrum. It took a while for the penny to drop but we realised that he simply learned the tune and rang it. Later I was in contact with someone on FB who could ring plain courses of some doubles methods by the tune, and could tell instantly if, for example, it was Grandsire that was being rung just by the sound. That doesn't really answer your question but your learner certainly isn't unique. On a more mundane level I discovered that I could ring plain hunt minor on the Ellacombe if I learned the tune and used the chimes as a musical instrument.