The Gusheh

The first few gusheh-ha fill the lower half of the octave, the next few fill
the rest of the octav,and later gusheh-ha may rise to the beginning of the
the second octav. what is important is not the  gusheh as a tune but ,in
a sense,the gusheh as genetic material for the creation of new pieces.
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The Daramad

For the opening gusheh the daramd , the melodi range.more>>>>
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The Radif

The total number of gusheh-ha in all twelve dastgah(300 melodies)
makes up a body of music called the Radif.
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Gusheh-Darmad-Radif