“In the Mood” is a big band era #1 hit recorded by American bandleader Glenn Miller. Joe Garland and Andy Razaf arranged “In the Mood” in 1937-1939 using a previously existing main theme (see below) composed by Glenn Miller before the start of the 1930s. Miller’s “In the Mood” did not top the charts until 1940 and one year later was featured in the movie Sun Valley Serenade.
“Moonlight Serenade” is an American popular song with original music by Glenn Miller and subsequent lyrics by Mitchell Parish. When Miller recorded “Sunrise Serenade” in 1939, he placed this song on the back. The song, recorded on April 4, 1939 on RCA Bluebird, was a Top Ten hit on the U.S. pop charts in 1939, reaching number three on the Billboard charts, where it stayed for fifteen weeks. It was the no.5 top pop hit of 1939 on Billboard in the year end Billboard tally of the top records of 1939. Glenn Miller had 5 records in the top 20 songs of 1939 on Billboard’s list. In the UK, “Moonlight Serenade” was released as the A side of a 78 on His Master’s Voice with “American Patrol” as the B side.