synthesized. 1  transitive verb. 2  1 : to combine or produce by synthesis. 3  2 : to make a synthesis of. 4  3 : to produce (something, such as music) by an electronic synthesizer. 5  intransitive verb. : 6  to make a synthesis.
Blues is a genre and musical form originated by African Americans in the Deep South of the United States around the end of the 19th century. The genre developed from roots in African musical traditions, African-American work songs, spirituals, and folk music.
Blue notes (or worried notes), usually thirds or fifths flattened in pitch, are also an essential part of the sound. Blues shuffles or walking bass reinforce the trance-like rhythm and form a repetitive effect known as the groove. Blues as a genre is also characterized by its lyrics, bass lines, and instrumentation. Early traditional blues verses consisted of a single line repeated four times.