Two of the most prolific and notable composers of all time will be the focus of the Quad City Symphony Orchestra's fifth virtual presentation in the musicians' 2020-21 Masterworks series, with the March 7 presentation A Little Night Music showcasing Wolfgang Amadeus Mozart's spirit-lifting Serenade in G major, Eine kleine Nachtmusik (A Little Night Music) and Johannes Brahms' rich, enchanting Serenade No. 2, op. 16.