Alhaiya Bilaval is a Hindustani classical raga. It is the most commonly performed raga of a large group of ragas that are mainly based on a scale more or less identical to the western major scale. For this reason, that scale itself is known as the Bilaval Thaat. It is often simply referred to as Bilawal, although in the 17th century Alhaiya and Bilawal may have been separate ragas.
Arohana
S GR G P ND N S'
Avarohana S' ND hn D P M G MR S
Vadi dha
Samavadi ga
Komal Swar: N (Vakra) in Avroh
Varjit Swar: M in Aaroh
Bilawal, Shuddha Bilawal, Devgiri Bilawal, Shukla Bilawal, Kakubh Bilawal
Behavior refers to practical aspects of the music. It is complicated to talk about this for Hindustani music since many of the concepts are fluid, changing, or archaic. The following information cannot be accurate, but it can attempt to reflect how the music existed.
Late Morning, 10 AM to 12 noon <See Sangeet Research Academy Know Your Raga Samay>
Certain ragas have seasonal associations.
Shaant Rasg
Bor, Joep (ed). Rao, Suvarnalata; der Meer, Wim van; Harvey, Jane (co-authors) The Raga Guide: A Survey of 74 Hindustani Ragas. Zenith Media, London: 1999.