The document provides instructions for playing the major scale on a keyboard instrument. It explains that a musical scale is a set of notes that fit together nicely. The major scale, which is the most common scale in Western music, follows a pattern of whole steps and half steps. The pattern is demonstrated starting on different notes on the keyboard. By pressing keys according to this pattern - whole step, whole step, half step, whole step, whole step, whole step, half step - and repeating it across the keyboard, one can play the major scale beginning on any note.