The music of Oleh Zaychenko, who performs under the moniker Bring Prudence, alternately shimmers with the subtle textures of chamber pop and seamlessly breaks into folk-rock, recalling the soundtrack of the folk revival of the 1960s with a sound he calls “folk resuscitation.” His next single, “Summon the Ghost,” is out today, a tribute to the power of memory that features a Balinese gendèr — often used for significant ceremonies — as well as a slightly out-of-tune Brooklyn public library piano.