Ideal piano fingers exhibit balanced proportions, long and slender digits, and a relaxed yet controlled posture. However, with proper training and technique, individuals of various hand shapes and sizes can develop dexterous and expressive piano-playing abilities.

In the system used in the Americas, the index finger represents 1; the index and middle fingers represents 2; the index, middle and ring fingers represents 3; the index, middle, ring, and little fingers represents 4; and the four fingers plus the thumb represents 5.

You want to play the piano with the tips of your fingers. While your thumb should be straight, the rest of your fingers should curve loosely over the keys, as though you're holding a ball. If necessary, you can practice the correct position by holding a tennis ball in your hand.