Bilaval
（重定向自Bilawal）
Bilawal is a raga and basic thaat (musical mode) in Hindustani classical music. It is equivalent to the Western Ionian mode (major scale) and contains the notes S R G m P D N S' (see swara for explanation). The pitches of Bilawal thaat are all shuddha, or natural. Flat (komal) or sharp (tivra) of pitches always occurs with reference to the interval pattern in Bilawal thaat.