
Though Lyn’to has a relatively warm but deep voice, when he sings, he often sings in falsetto (countertenor). Linking below Bach’s “Qui sedes ad dexteram Patris, miserere nobis” (You who sits at the right hand of the Lord, have mercy on us) for an example of how Lyn’to sounds.
EDIT: Another video with vocal technique (especially the vocal trills around 1:13)