Theory
Tam perde (main pitch)
Tam perde
The pitches that make up the main scale in traditional theory: Yegah, Hüseyni-aşiran, Irak, Rast, Dügah, Segah, Çargah, Neva, Hüseyni, Eviç, Gerdaniye, Muhayyer and so on. The pitches that fall between them are called ara perde (in-between pitches).