"Commentaries on the Teaching of Pianoforte Technique" is a 1910 guide to playing the piano by Tobias Matthay. Written as a supplement to Matthay's definitive books "The Act of Touch" and "First Principles", it contains further information on some of the more detailed areas and complicated techniques. This volume is highly recommended for those who have read Matthay's previous works and will be of utility to intermediate players and students. "Contents include: The Principle of Forearm Rotation", "Arm-vibration, etc.", "On Pianissimo Playing", "The Merging of the Three Species of Touch-Instruction", "The use of Bad Touch-forms", "The Artificial Legato-element", "The Distinction between Fore Arm and Whole Arm Weight and Movement", etc. Tobias Augustus Matthay (1858 - 1945) was an English pianist, composer, and teacher. He was taught composition while at the Royal Academy of Music by Arthur Sullivan and Sir William Sterndale Bennett, and he was instructed in the piano by William Dorrell and Walter Macfarren. Other notable works by this author include: "The Act Of Touch In All Its Diversity: An Analysis And Synthesis Of Pianoforte Tone Production" (1903), "The First Principles of Pianoforte Playing (1905)" and "Relaxation Studies" (1908). Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially-commissioned new biography of the author.