BLUES_MUSIC_7-8, music, USA, singer, musician, performing, singing, sound, rhythm, harmony, microphone, festival, vertical, verticals, African-American, male, harmonica, hat, musical, exhilarated, America, sing, The United States, entertain, entertaining, spirited, perform, enthusiasm, performance, enthusiastic, United States, performances, showmanship, microphones, singers, festivals, musicians, exhilarate, African American, African American Ethnicity, African Americans, African-Americans, Afro-American, males, hats, US, blues, blues harp, Johnny Mars, brimmed hat, fedora, felt hat, Monterey Blues Festival, Blues Festival, melody, tempo, blues music, California, Monterey California, Monterey CLCL CLCL CL