50.0 MB (3.7 MB compressed)
4655 x 3751 pixels
39.4 x 31.8 cm ⏐ 15.5 x 12.5 in (300dpi)
MARTIN BOND / SCIENCE PHOTO LIBRARY MARTIN BOND / SCIENCE PHOTO LIBRARY
Playing an electric organ. Hand practising chords on the double keyboard of an electric organ. The process of playing a keyboard requires rapid, smooth changes in length and tension of the muscles. Receptors within the muscles detect these changes, which are fed to the brain for it to modify further movements. Practice, that is, repetition of the same movements, allows the brain to learn the muscle and joint actions, and less correction is necessary. Speed and accuracy increase as the skill is learned in this way.
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