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Kotheimer consulted his listening notes: “Flat second, major third, perfect fourth, perfect fifth, major sixth, flat seventh.” Everybody nodded: that’s the tone set, which helps identify the particular raga, one of 25 new “genes” added to Pandora’s algorithm to accommodate this variety of non-Western music. Based on the beat, everyone agreed that this raga was set in Teentaal, with a 16-beat rhythmic cycle often heard in North Indian classical music; it’s now in the genome too. But that was the easy part, apparently. They moved on to vocals, and Alan Lin, a violinist, ticked off the scores he came up with for things like rhythmic intensity and the relative exoticism of the melody scale. “I actually put exotic at 3.5,” he said. This prompted Sameer Gupta — a percussionist and an expert on Indian music who was weighing in by speakerphone from New York — to lead a brief discussion of how to think about melody and exoticism in this context. Seven or eight scores related to melody, and then about the same number for harmony. (“A 5 for drone,” one analyst announced.) More scores related to form. Tempo. The timbre of the reeds. When Gupta gave his score for riskiness on the percussion — a 3.5 — Lin did a sort of fist pump: “Yes!” Evidently he’d scored it the same way, meaning progress toward properly fitting Indian music into the Music Genome Project. Things went on like this for a while. “Even if you have a solo violin with a tabla, you’re still going to have monophony,” Gupta remarked at one juncture. “I just wanted to point that out.” It was hard to believe there was a business riding on this kind of conversation.