Think of Latin music in New York City and you instantly think of salsa - unless you’re singer Koutsovitis. Sounding something like a folkloric, chamber-jazz version of Flora Purim, the native Argentine (and one-time Boston resident, now transplanted to the Big Apple) scours South America in search of themes, melodies and instruments to forge a pancontinental take on the region’s indigenous folk music, enlivened by the freedom of jazz and the passion of flamenco singing. It’s a potent combination that’s like nothing else around. Download: “Instante de Vos.”