Intervals

Two notes played in succession, usually in one hand but sometimes in both, whose distance is the interval of a 3rd of any quality.

Expression

Embellishments added to melodies that serve to decorate, increase interest, and allow performers to add their own unique expressiveness.

Intervals

A series of any amount or quality of blocked 3rd intervals that are played in one hand, and where both notes move up or down in parallel motion.

Expression

An indication instructing the player to play softly.

Scales

A key signature that contains only one sharp or flat: G Major, E minor, F Major, or D minor.