The Rast pitch class set is a set of scales that are named after the Rast makam. For Rast, there is the Rast tetrachord and Rast pentachord.
It is used as a Çeşni in many makams.
The intervals of the Rast tetrachord and Rast pentachord within 53 Tone Equal Temperament are given in the table:
Rast pentachord | Rast tetrachord | 1 | T (9) | Rast |
2 | K (8) | Dügâh | ||
3 | S (5) | Segâh | ||
4 | T (9) (Only for pentachord) | Çârgâh | ||
- | 5 | - | Neva |
Rast Ascending[2] | Rast pentachord | Rast tetrachord | |||
Acemli Rast (Same as Rast Descending) | Rast pentachord | Buselik tetrachord | |||
Basit Suzinak[3] | Rast pentachord | Hicaz tetrachord | |||
Nikriz pentachord | Rast tetrachord | Buselik tetrachord |