Hem Bihag

Hem-Behag is a late night raga in Hindustani [classical music|North Indian classical music] that was composed by Ustad Baba Allauddin Khan.

Origin

Hem-Behag has principal roots in a more common raga, Bihag. Hem-Behag or Bihag takes aspects of Raga Hemant. The raga centers around shudha Madhyam and Ni, but this is variable.

Structure

Arohana: Ni Sa Ga Ma Pa Ni Sa
Avarohana: Sa Ni Dha MaPa Ma Ga Ma Re Sa

Good sources for listening would be:

Ali Akbar Khan & Ravi Shankar performing an alaap in their live In Concert 1972 album.
Nikhil Banerjee