Definition from Wiktionary, the free dictionary
sonero (plural soneros)
- (music) An improvising lead singer in salsa music
2007 February 9, The New York Times, “Pop and Rock Listings”, New York Times:
- This annual concert at Madison Square Garden features two salsa giants: Victor Manuelle, a leading young sonero, or improvising singer, who is not above dipping into reggaetón to score a hit, and Gilberto Santa Rosa, an unswerving traditionalist for three decades.