Acemli Rast ("Rast with Acem") is the implementation of the descending version of the Rast scale in Turkish makam music. It is in 53 Tone Equal Temperament.

+Breakdown of the Acemli Rast MakamComponentsNoteWestern NoteSteps to following noteCents from Durak noteFunctionRast pentachordRastGT (9)0DurakDügâhAK (8)203.77SegâhBS (5)384.91ÇargahCT (9)498.11NevaDT (9)701.89GüçlüBuselik tetrachordGüçlüHüseyni/HisarEB (4)905.66AcemFT (9)996.23The Yeden of this scale is Irak (F#), which is not octave equivalent with Acem.GerdaniyeG -1200.00Tiz Durak

Comparison with Western scales Since the makam is based on 53-TET, it is impossible to directly tie it to 12-TET Western scales. However, using the 48-TET model, while worse than many other models in approximation, allows for such comparisons.

The approximation of Acemli Rast within 48-TET would be: Mixolydian(3).

Notes This is because 48 is divisible by 12. denotes a quarter flat, 25 cents in this case. (One Holdrian Comma in 53-TET)

References