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Acemli Rast

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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.

More information Components, Note ...
Breakdown of the Acemli Rast Makam[1]
Components Note Western Note Steps to following note Cents from Durak note Function
Rast pentachord Rast G T (9) 0 Durak
Dügâh A K (8) 203.77
Segâh Bhalf flat S (5) 384.91
Çargah C T (9) 498.11
Neva D T (9) 701.89 Güçlü
Buselik tetrachord Güçlü
Hüseyni/Hisar E B (4) 905.66
Acem F T (9) 996.23 The Yeden of this scale is Irak (F#), which is not octave equivalent with Acem.
Gerdaniye G - 1200.00 Tiz Durak
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DurakRast
GüçlüNeva
YedenIrak
SeyirAscending
Quick facts Durak, Güçlü ...
Acemli Rast
DurakRast
GüçlüNeva
YedenIrak
SeyirAscending
Lower ÇeşniRast pentachord
Higher ÇeşniBuselik tetrachord
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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,[2] allows for such comparisons.α

The approximation of Acemli Rast within 48-TET would be: Mixolydian(half flat3).β

Notes

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

References

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