Sonia Roy belongs to the Indore gharana of Indian classical music.
About Indore gharana
Indore gharana is one of the vocal gharanas of Indian classical music. It was founded by Ustad Amir Khan, who studied the styles of Abdul Wahid Khan, Aman Ali Khan, Rajab Ali Khan and Abdul Karim Khan and amalgamated the essence of the styles of these four maestros with his own intellectual approach to music, and conceived the Indore gharana of music.
Amir Khan grew up in Indore, but he did not like the factionalism inherent in the gharana tradition. In an interview to Akashvani Indore he said
In fact I want only one gharana in classical music, which should be termed as Hindustani Music, and it should have different departments. These are gharanas. If the main thing is kept in this form, then our mutual recriminations with respect to music will be reduced. Many separate styles were formed out of one style of a gharana, as in the case of languages. Many languages came out of one language, similarly styles and gharanas were formed in music. Now a days, I am singing in the name of Indore Gharana.
Performances in the Indore gharana are noted by the vilambit tempo in the styele of Abdul Wahid Khan, and the taans reminiscent of Rajab Ali Khan. The merukhand structure is similar to that practiced by Ustad Aman Ali Khan of the Bhendibazaar gharana. The khayal gayaki in the Indore gharana retains the slow development and restraint from frills as in the dhrupad. Mohan Nadkarni says of Amir Khan’s music that whereas Bade Ghulam Ali Khan’s music was extroverted and exuberant, Amir Khan’s was an introverted, dignified ‘darbar’ style.
Amir Khan’s conviction about the importance of poetry in khyal compositions (he used to compose under the pen name, Sur Rang), has also marked the singing of the Indore gharana.