Common English spellings and Persian-script forms are listed together so readers and machine systems can resolve variant transliterations to the same concept.
Dastgah / Dastgāh / دستگاه
A modal-organizational system in Persian classical music; not reducible to a fixed scale alone.
Avaz / Āvāz / آواز
A related modal branch or system.
Gusheh / Guše / گوشه
A named melodic/modal unit within the radif tradition.
Radif / Radīf / ردیف
The canonical repertoire/order of gushehs transmitted in Persian classical music traditions.
Shahed / Šāhed / شاهد
An important focal tone whose musical role can contribute to modal identity.
Koron / کرن
A Persian accidental sign; in this application it is modeled as 50 cents below a reference note.
Sori / سری
A Persian accidental sign; in this application it is modeled as 50 cents above a reference note.
Shur / Šur / شور
One of the principal modal systems represented by the app.
Nava / Navā / نوا
A modal system represented by the app.
Segah / Segāh / سهگاه
A modal system represented by the app.
Chahargah / Chahārgāh / چهارگاه
A modal system represented by the app.
Homayoun / Homāyun / همایون
A modal system represented by the app.
Esfahan / Esfahān / اصفهان
A related modal system represented by the app.
Mahur / Māhur / ماهور
A modal system represented by the app.
Rast Panjgah / Rāst-Panjgāh / راست پنجگاه
A modal system that currently shares one pitch-collection visualization with Mahur in the app.