On the surface, there may not seem to be much in common between Igor Stravinsky’s one-act comic opera Mavra of 1922 and Arnold Schönberg’s groundbreaking Pierrot lunaire written a decade earlier. However, in this double bill from the Royal Opera’s Jette Parker Young Artists Programme, which represents its first full production in the intimate Linbury Theatre since Susanna in March 2020, synergies are implied between the two works without any suggested parallels...