Gould developed a technique that enabled him to choose a very fast tempo while retaining the "separateness" and clarity of each note. His extremely low position at the instrument permitted him more control over the keyboard. Gould showed considerable technical skill in performing and recording a wide repertoire including virtuosic and romantic works, such as his own arrangement of Ravel's "La valse", and Liszt's transcriptions of Beethoven's Fifth and Sixth Symphonies. Gould worked from a young age with Guerrero on a technique known as finger-tapping: a method of training the fingers to act more independently from the arm.