Mastering Piano Technique by Seymour Fink

"Strength at the piano is a mainly a matter of aligning the parts to make maximum use of our bone structure."

Some other concepts that he explores:

  • Fundamental Movements
  • Applied Movements
  • Synthesised Movements

Rotation of the Arm:

  • Pronation
  • Supination

Movement of the arm in relation to the body:

  • Abduction - move the arm away from the centre
  • Adduction - move the arm towards the centre

Conscious Habit Formation... and much more...

There are lots of concepts and demos here that are of value to guitarists!