Traditional pop
On the Broadway, Tin Pan Alley, and Hollywood show in the 1930s and 1940s, a number of popular songs were written by many songwriters - such as: Irving Berlin, Frederick Loewe, Victor Herbert, Harry Warren, Harold Arlen, Jerome Kern, George Gershwin and Ira Gershwin, Richard Rodgers and Lorenz Hart, Oscar Hammerstein, Johnny Mercer, Dorothy Fields, Hoagy Carmichael and Cole Porter.