Expression

Indications instructing the player to play gradually louder (crescendo) or softer (diminuendo).

Chords

Four-note chords comprised of the root, major 3rd, perfect 5th, and minor 7th.

Rhythm

8th notes whose lengths are increased by half; equal to three 16th notes.

Rhythm

Quarter notes whose lengths are increased by half; equal to three 8th notes.

Hand and Finger Techniques

Hand positions that require stretching beyond a five finger scale; usually to play intervals that are 6ths or greater.

Texture

A type of texture where the left hand plays the melody and the right hand plays the accompaniment for an extended period of time.

Intervals

Two notes played in succession, usually in one hand but sometimes in both, whose distance is the interval of a 6th of any quality.

Expression

An indication instructing the player to play very softly; softer than piano.

Meter

An Italian term meaning "delaying"; an indication instructing the player to decrease speed, often gradually.