Swing music, or simply swing, is a form of popular music developed in the United States that dominated in the 1930s and 1940s. The name swing came from the 'swing feel' where the emphasis is on the off–beat or weaker pulse in the music. Swing bands usually featured soloists who would improvise on the melody over the arrangement. The danceable swing style of big bands and bandleaders such as Benny Goodman was the dominant form of American popular music from 1935 to 1946, a period known as the swing era. The verb "to swing" is also used as a term of praise for playing that has a strong groove or drive. Notable musicians of the swing era include Louis Armstrong, Duke Ellington, Count Basie, Benny Goodman, Artie Shaw, Glenn Miller, Woody Herman, Tommy Dorsey, Jimmy Dorsey, Harry James, Louis Jordan, and Cab Calloway.