An example of how the subtonic serves as a secondary dominant to the mediant (in A minor: G is the dominant of C). From Bach's Chorale Ach wie flüchtig, ach wie nichtig, BWV 26. It is a reduction of the opening of the "Choral" or sixth movement.
Silent Night (track 18 of 27 on 2010 Christmas With The Chorus album)
Author: Joseph Mohr, Franz Xaver Gruber, performed by United States Army Chorus, arranged by Col. (Ret.) Samuel R. Loboda and Maj. Dwayne S. Milburn/Joseph Mohr
