found: New Grove dict. of mus.:v. 9, p. 73 (In South Asia there are two recognized dialects of classical music. Hindustani (or north Indian) ... for the region where Indo-Aryan languages are spoken (including Pakistan and Bangladesh), that is, the Indo-Gangeti plain with the north-western quadrant of the peninsula)
found: New Harvard dict. of mus.:South Asia (... Hindustani and Carnatic systems. The former is prevalent in northern, Indo-Aryan-speaking areas of the subcontinent, including Pakistan, Bangladesh, and less significantly, Afghanistan and Nepal and among the Sinhalese inhabitants of Sri Lanka.)
found: New Grove dict. of mus. WWW site, Jan. 20, 2010:(The classical music of north India.)