DURATION

-It is the quality of sound that distinguishes long or short sounds. 

- Rest: represent the duration of the silence.

- Time signature: divide into equal parts and sets notes and rests values.

- Length modifiers: prolong or extends the duration.

 Dot: adds half of it value.

 Ligature: adds up duration.

 Fermata: extends interrupting the measure.

- Tempo: speed of the performance of a musical piece:

 Largo: very slow

 Adagio: slow

 Andante: calm

 Allegro: fast

 Presto/Vivace: very fast

PITCH

Pitch: is the quality of sound  distinguishes between high or low sounds. It is measure by wave frequency.

Tuning fork: it is an object used before playing an instrument.

Staff: is a group of five sapces and we put notes and symbols.

Cleff: it is a symbol than names the notes; there are two types of cleff :

G CLEFF  AND  F CLEFF