The thaat is a musical scale which always has seven notes and is used as a headline. It can be viewed as a basic scale, which is mainly used for classification purposes. According to Pt. Bhatkhandé, all varieties of the Indian Classical raaga are classified into ten thaats.
- Kalyaan
- Bilaaval
- Khamaaj
- Bhairav
- Purvi
- Maarvaa
- Kaafi
- Asaaravi
- Bhairavi
- Todi