Imagine how international listeners feel about music classification systems (nearly every one out there) that clump all international music into 'World Music'. Just looking at Indian music, there's probably a few dozen high level categories you can create for completely different genres of music.

North Indian, South Indian, Hindustani, Carnatic, Film music from maybe a dozen different languages that are wildly different, qawwalis, ghazals, Rabindra Sangeet, music from different periods of Indian cinema... I could go on... sigh.