Dastgāh (Persian: دستگاه) is the standard musical system in Persian art music, standardised in the 19th century following the transition of Persian music from the Maqam modal system. A dastgāh consists of a collection of musical melodies, gushehs. In a song played in a given dastgah, a musician starts with an introductory gusheh, and then meanders through various different gushehs, evoking different moods.
