Phys Mechanics Ptec

abduction Accordingly acting action activity actual amount angle arpeggio ascending beginning body bones caused chapter condition considerable considered coördination curve demands depends descending desired determined difference direction distance effect elbow entirely equal example extended extreme fact fifth finger figure finger finger-stroke finger-tip fixed flexion flexors force fore-arm forward given greater hand hand-knuckle hence horizontal illustrates increase intensity involved joint keyboard lateral less lift light marked means mechanical ment motion move movement muscles muscular contraction nature necessary needed normal octave passage permit physiological pianistic piano player playing position possible practice present principle produce pull pupil range rapid reached reaction records relatively relaxation remains resistance rest result rotation scale shift shoulder shown shows side similar slow speed spread stroke sufficient takes tendon third thumb tonal tone touch transfer upper variations various vertical weight wrist