Two-Octave Arpeggios (6.2)

Begin by practising throws in the right hand, between the third finger and the thumb on white keys only. Place the 3rd finger on the G above middle C. Use a throw to move upward to the C above middle C.
The Throw requires no preparation--it is a sudden, unprepared, lateral movement.
When playing the 3rd finger, allow the thumb to hang freely, off of the keys, and maintain hand alignment in front of the forearm.
The 3rd finger plays out toward the edge of the key.
The Throw is a free, easy movement that uses the larger muscles of the arm.
Note what part of your body executes the throw by observing very large throws—ones that are larger than we ever need to play arpeggios.

Left-Hand Inversion Instructions:

To practise throws in the left hand, between the third finger and the thumb on white keys only, place the 3rd finger on the F below middle C– and throw downward to the C below middle C.
Review all other instructions for the right hand, above.

Experiment with throws that are smaller than what is required to play arpeggios. For example, in C Major, instead of playing C-E-G-C, start with C-E-G-A (so that the throw is only a second) and then C-E-G-B (so that the throw is a third) before completing the full arpeggio C-E-G-C, where the last interval is a fourth.
Similarly, practise smaller throws descending in the right hand. Thus, play the descending arpeggio C-G-E-C and land on B (a second below the C). Then land on A (a third below the C) and finally on G (the actual interval played in this arpeggio, a fourth down from C).
Note: this is a compressed explanation of two-octave arpeggios. For a fuller, detailed experience with studying virtuoso arpeggios, consult entradapiano.com.