Acemli Rast
| Durak | Rast |
|---|---|
| Güçlü | Neva |
| Yeden | Irak |
| Seyir | Ascending |
| Lower Çeşni | Rast pentachord |
| Higher Çeşni | Buselik tetrachord |
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.
| 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 | B |
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 |
Comparison with Western scales
[edit]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(3).β
Notes
[edit]- ^α This is because 48 is divisible by 12.
- ^β
denotes a quarter flat, 25 cents in this case. (One Holdrian Comma in 53-TET)
References
[edit]- ^ "RAST". TDV İslâm Ansiklopedisi (in Turkish). Retrieved 2024-02-07.
- ^ Bozkurt, Barış; Yarman, Ozan; Karaosmanoğlu, M. Kemal; Akkoç, Can (March 2009). "Weighing Diverse Theoretical Models on Turkish Maqam Music Against Pitch Measurements: A Comparison of Peaks Automatically Derived from Frequency Histograms with Proposed Scale Tones". Journal of New Music Research. 38 (1): 45–70. doi:10.1080/09298210903147673. hdl:11147/2853. ISSN 0929-8215.