The excitement level for music and food buffs crescendos at Farrah Olivia on the last Tuesday of each month, when the Old Town Alexandria restaurant hosts an evening that pairs opera with chef Morou Ouattara’s African-influenced New American cuisine. As classic arias and Broadway faves are sung by soprano Diane Abel and tenor Joseph Haughton, diners will enjoy a four-course dinner with choices such as orange-scented salmon with fermented yucca couscous (7 PM; $60 per person; $18 extra for wine pairings; call 703-778-2233).