The major scale is a diatonic scale that consists of seven notes, with a whole step between each note except for the third and seventh notes, which have a half step between them.

A major chord is a triad that consists of a root note, a major third, and a perfect fifth.

A major third is an interval that consists of four half steps.

Triple meter is a rhythm that consists of three beats per measure.

A fermata is a musical symbol that indicates a pause in the music, usually over a note or chord.

A crescendo is a musical term that indicates a gradual increase in volume.

A decrescendo is a musical term that indicates a gradual decrease in volume.

Forte is a musical term that indicates a sudden increase in volume.

Piano is a musical term that indicates a sudden decrease in volume.

Fortissimo is a musical term that indicates a very loud dynamic level.

Mezzo forte is a musical term that indicates a moderately loud dynamic level.

Mezzo piano is a musical term that indicates a moderately soft dynamic level.

Pianissimo is a musical term that indicates a very soft dynamic level.

Accelerando is a musical term that indicates a gradual increase in tempo.

Ritardando is a musical term that indicates a gradual decrease in tempo.