These two greats of the British stage are firm friends and their first album together, recorded with the Czech National Symphony Orchestra, lets their chemistry underline their talents. “Music of the Night” has long been Ball’s solo calling card but Boe slips gracefully into a powerful duet here. Likewise, Ball comfortably matches his partner for gravitas on “Les Miserables Suite”. They’re not just dealing in stage classics though, and their take on Christina Perri’s “A Thousand Years” is an understated treat.