[3] In 1970 she became guest professor at the University of California, Santa Barbara, a position which confirmed her increasing involvement with the musical life of the United States.
[6] More recent works continue the idea though sometimes in a more programmatic way: such as the oboe concerto Helios of 1994, in which the soloist represents the Sun God.
[7] She has written more than a dozen operas and other music theatre works, many taking a historical figure as their central character, among them Mary, Queen of Scots (1977), Harriet Tubman (Harriet, the Woman called Moses, 1984), Simón Bolívar (1993; premiere 1995 at the Virginia Opera) and Pontalba (2003).
In 2008, her 80th birthday was marked by premieres of Points of View, Green, Cantilena, Taking Turns and other performances.
[8] In 2018, coinciding with Musgrave's 90th birthday, her compositions were performed at the Edinburgh International Festival and the BBC Proms.