Twelve years ago, Naftali Kempeh was a young bochur in Yeshivas Kol Torah. In the cracks between sedorim, he was learning to play guitar, strongly drawn to Shlomo Carlebach’s music. Strumming a Carlebach tune on his bed one day, the budding guitarist played an A-minor, then a G. Suddenly, a shout issued from a nearby dorm room: “No, should be an E-minor!” The correction came from Yitzy Berry, a bochur a few years older, who had grown up on music and had just begun to develop his own considerable musical talents. To Kempeh, it felt like high praise.