[par-uh-did-l] 
| an exercise or sequence performed typically on the snare drum, marked by four basic beats with alternation of the right hand and left hand on successive strong beats, and begun and ended slowly with a dramatic increase in tempo in the middle. |
| par·a·did·dle (pār'ə-dĭd'l) n. A pattern of drumbeats characterized by four basic beats and alternating left-handed and right-handed strokes on the successive primary beats. [Probably imitative.] |
əˌdɪd