Çârgâh is the implementation of the Chahargah scale in Turkish makam music. Chargah makam was invented by Saddettin Arel so as to make an attempt to link traditional Turkish music with European scales. There are no traditional compositions in this makam, Hence it is not a true Turkish makam - see "The Music of Rumi" ISBN 978-0-9571665-0-9. It is in 53 Tone Equal Temperament. The makam is the central scale used within analysis in the Arel Ezgi Uzdilek system, this is not because this is a scale that's used a lot or otherwise central, but because it can be written without any accidentals.
Çârgâh in 53-TET +Breakdown of the Çârgâh MakamComponentsNoteWestern NoteSteps to following noteCents from Durak noteFunctionÇârgâh pentachordKaba ÇârgâhÇârgâhCT (9)0DurakYegâhNevaDT (9)203.77Hüseynî AşiranHüseynîEB (4)407.55Acem AşiranAcemFT (9)498.11RastGerdaniyeGT (9)701.89GüçlüÇârgâh tetrachordGüçlüDügâhMuhayyerAT (9)905.66BuselikTiz BuselikBB (4)1009.43ÇârgâhTiz ÇârgâhG -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.Note: This is because 48 is divisible by 12.
The approximation of Çârgâh within 48-TET would be the Major Scale.
References
See also Çârgâh pitch class set