How the brain learns movement

The first time you fret a chord, almost the whole brain is involved: the prefrontal cortex thinks along, the motor cortex coordinates every movement individually. The result is slow, effortful, error-prone — and that's exactly how it should be at the start.

With every correct repetition, automation begins. The basal ganglia store the movement sequence, the cerebellum takes over fine coordination. After many repetitions the shape runs without conscious thought — the work has migrated from the thinking system into the movement system.

From this follows the most important rule for beginners: the brain learns what it repeats — including mistakes. Learned wrong is harder to fix than not learned at all. A new movement sequence needs roughly 200–500 correct repetitions before it moves into long-term memory. Practice about 20 clean changes a day and you'll have it secure in ten to twenty-five days — provided they're clean.