Peşrev

Peşrev or Peshrev (Turkish, "prelude"; pronounced ) is an instrumental form in Ottoman music. It is the name of the first piece of music played during a group performance called a fasıl (Turkish pronunciation:). It also serves as the piece of the Mevlevi ayini, a ritual music of the Mevlevi Order, under the name son peşrev (final peşrev), preceding son semai. It usually uses long rhythm cycles, stretching over many measures as opposed to the simpler usul the other major form of instrumental music uses, saz semai.

Along with the saz semai, called in Arabic the sama'i, it was introduced into Arabic music in the 19th century and became particularly popular in Egypt.