They’re not the Three Tenors, nor are they the Bee Gees. But the three young Italian vocal artists who comprise Il Volo have things in common with those famous harmony-singing trios. Piero Barone, Ignazio Boschetto and Gianluca Ginoble are, individually and collectively, masters of bel canto (“beautiful singing”), the powerful, but lyrical and graceful, style of operatic vocalizing (think…
