String Quartet String Quartet - Level 3 - Digital Download SKU: A0.577028 Composed by Richard Rodgers. Arranged by Alex Phillips-Yates. Broadway,Film/TV,Musical/Show,Standards. 9 pages. North Node Music #186372. Published by North Node Music (A0.577028). This beautiful duet from the motion picture The Sound of Music was sung by the great Julie Andrews and Christopher Plummer as Maria and Captain von Trapp. In this arrangement, the melody is shared between all four members of the quartet.