Glenn Miller Orchestra – In the Mood With its catchy saxophone riffs and infectious swing rhythm, “In the Mood” stands as one of the most iconic pieces of the swing era. It captured the spirit of late-1930s and early-1940s America, becoming a source of joy and energy for both civilians and soldiers during World War II. Overview “In the Mood” was recorded by the Glenn Miller Orchestra in 1939 and quickly became a massive hit. Originally composed by saxophonist and arranger Joe Garland, the piece was reworked and arranged by Glenn Miller, who gave it a distinctive sound that propelled ...