Synonyms of 'croon'

anthem, ballad, carol, chant, chirp, chirrup, choir, chorus, descant, hum, hymn, intonate, intone, lilt, minstrel, pipe, psalm, quaver, roulade, serenade, shake, sing, sol-fa, tremolo, trill, troll, twit, twitter, vocalize, warble, whistle, yodel