The fasil is a suite in Ottoman classical music. It is similar to the Arabic nawba and waslah.
A fasil generally includes movements such as taksim, perev, arki, beste, kar, ''agir sema'i, yuruk sema'i, gazeland saz sema'i'', played continuously without interludes and interconnected through aranagme arrangements. [*]
True Fasil is a musical act distinct from the commercialized performance of oriental pop and folk songs found at a meyhanes and taverns, which have come to be also referred to by the same name.