1. Mid 1920s 10-25 Instrumentalists String Section Little improvisation Combined classical and jazz Dance and pop tunes Emulated improvisation 2. 1930s No more strings Soloists improvising four feel Syncopation 3. The Swing Era 1935-1945 Popular music Strong rhythm section More heavily orchestrated Great American Songbook Many well-known bandleaders 4. Late Swing & The Fall of Swing Late 40s Featured Vocalists World War II Recording bans 5. Post-Swing Era Big Band Not popular music Modern traditionalist Orchestrialist New instruments 6. FIN