The term MET MOMENT can be solved by the crossword solution ARIA. An ARIA is a self-contained piece for one voice, with or without instrumental accompaniment, normally part of a larger work such as an opera, cantata, oratorio, or musical. It is usually a solo piece, most often in the form of a song, and is typically a dramatic and emotionally charged composition. An ARIA can also be used to describe a moment of great emotion or intensity in any type of performance.