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.

1. Kalyaan
2. Bilaaval
3. Khamaaj
4. Bhairav
5. Purvi
6. Maarvaa
7. Kaafi
8. Asaaravi
9. Bhairavi
10. Todi