Listen to Alap In Raga online. Alap In Raga is a Hindustani language song and is sung by Pt. Shyamal Chatterjee and Pt. Hirendranath Ganguli. Alap In Raga, from the album Two Maestros, was released in the year 2007. The duration of the song is 46:15. Download Hindustani songs online from JioSaavn.