Why is music so difficult?

It has to do with time, not beats, but time as it flies - or doesn't: mental speed. Ear is faster than eye. Okay, but how can one make reliable contact with one's ear when music training is so eye-based?

As this is of central importance to me has become clear during the past five years, after experiencing for the first time in my life, at age 82, the uninterrupted connection between ear and fingers. Until then I could train my ear - and I did, by learning to tune it to different resonances, from pure vocal (i.e., just) to mean-tone - but I could not attach that finely trained ear to finger speed or touch because the neuro-muscular connection was not physiologically functional. Now that it is the question arises: could I teach people to hear and respond at this level? My answer: if they are children or children at heart, perhaps.