Virtuosity, in its traditional sense, is musical performance at its most outgoing; the Boston Modern Orchestra Project’s Saturday concert — “Double Trouble,’’ a quartet of double concerti — revealed a plethora of extroverted strategies. The plurality of styles was a showcase for the flexibility of conductor Gil Rose’s group, switching channels with ease, burnished and rhythmically rigorous in a program marked by wide-ranging gregariousness.
Harold Meltzer’s 2004 “Full Faith and Credit’’ for two bassoons and strings was inspired by the hot-button issue of same-sex marriage (the title name-checks the constitutional clause deliberately sidestepped by the Defense of Marriage Act), but any programmatic intent was subsumed under Americana-inspired stylistic costumes: more divertimento than concerto, approachable and occasionally inspired (a smear of string harmonics brought down to earth by the bassoons’ laconic interplay was particularly ear-catching). Soloists Ronald Haroutunian and Adrian Morejon were soulful and deadpan by turn, every note varnished to a high gloss.