Dynamics
How loudly or softly to play a piece of music.
Duple
Music that is felt in groups of two beats.
Duo
Two singers or musicians.
Dùndún

An hourglass-shaped drum from West Africa, whose pitch can be regulated to mimic the tone and prosody of human speech. It has two drumheads connected by leather tension cords, which […]
Dulcimer

An instrument with strings pulled tight over a hollow piece of wood. The strings are hit with a hammer to make sound.
Duet
A composition for two performers.
Drum

Percussion instrument on which sound is made by hitting a skin pulled across a hollow space on a round frame with a stick (called a drumstick). There are lots of […]
Downbeat
When the conductor moves his baton down to show which notes to accent.
Double Bass
The biggest instrument with strings. It plays very low notes and a person pulls a bow across its strings to make sound.
Dolce
Italian for “sweet.”