In the Mood

"In the Mood" is a famous jazz song from the big band era.

It is a "swing" song, which is a lively style of jazz. The most famous version was recorded by bandleader Glenn Miller in 1939. This recording became the best-selling swing instrumental ever made. Because it is so special, it was added to the Grammy Hall of Fame in 1983. It also joined the Library of Congress National Recording Registry in 2004. This registry honors recordings that are important to history or culture. In 1999, NPR even named it one of the 100 most important American musical works of the 20th century.

The music has a very specific way of working. It starts with a saxophone section playing a theme. This theme uses repeating notes called arpeggios that feel rhythmically bouncy.

Trumpets and trombones join in to add strong, accented hits. Some recordings include a "tenor fight," which is a solo where two saxophones chase each other. One version features Tex Beneke and Al Klink in this chase. There is also a 16-bar trumpet solo by Clyde Hurley. At the very end, the song climbs up and finishes with a loud, single drum hit called a rim shot.

The history of the song is quite interesting. It started as a melody called "Tar Paper Stomp" by Wingy Manone. Manone recorded it in 1930 in Richmond, Indiana. Later, Joe Garland made an arrangement of the tune called "In the Mood." He sold it to Artie Shaw in 1938, but Shaw did not record it. Shaw's version was over six minutes long, which was too long for many listeners. Finally, Glenn Miller bought the song in 1939. Miller and his team, including pianist Chummy MacGregor, worked to change the arrangement. They added new solos and a finishing part called a coda.

Many people have played this song in different ways. In 1944, the U.S. War Department sent Miller's recording to soldiers overseas. These special records were called V-Discs. In 1951, a Ferranti Mark 1 computer at the University of Manchester played the song. This was one of the first songs ever played by a computer. Other versions have been very popular, too. The Andrews Sisters sang a vocal version in 1952. In 1959, an orchestra led by Ernie Fields reached number four on the Billboard charts. Even a novelty version with clucking chickens entered the U.S. charts in 1977.

You might recognize the sound of this music in movies or other songs. Glenn Miller and his band performed it in the 1941 film "Sun Valley Serenade." The song has even inspired other famous musicians. The blues singer John Lee Hooker said it inspired his hit song "I'm in the Mood." Modern groups like Pentatonix have also played with it. In 2025, they made a version called "Moody Rudy" for a Christmas album. Whether played by a big band or a computer, the song stays a classic. It connects the jazz of the 1930s to music made today.