
Run it once, mark the exact spot that broke, slow it down until it's right, get it right three times, then raise the speed. Stitch it back in. Test it cold the next day. Measure practice by spots fixed, not minutes.
S Evidence: strong. Large trials or many studies, pointing the same way.
C Evidence: contested. The research disagrees. Named, so you can stop worrying about it.
Platz et al. 2014 (meta-analysis; interpretation disputed) · Duke, Simmons & Cash 2009 (17 pianists).
Not medical, legal or financial advice.
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