Final answer:
Jazz and blues are genres of music that were greatly influenced by the African American experience during the War of Liberation, reflecting the cultural shifts and expressing the emotions and lives of the African American community. Rock 'n' roll and hip-hop also became significant musical movements that spoke to and about the experiences of youth and marginalized groups in subsequent decades.
Step-by-step explanation:
The genre of music that arose from the War of Liberation, especially in the context of the African American experience, is most closely associated with jazz and blues. These genres represented a break from the dominant European classical music and Big Band styles of the era. African American communities, particularly in Harlem and New Orleans, developed these styles which reflected the highs and lows of their lives. Jazz, characterized by its up-tempo beat and improvisational solos, carried a bolder rhythm and harmony. Similarly, the blues with its distinctive chords and "blue" notes, expressed the deeper emotional spectrum of the African American experience.
Meanwhile, the spread of rock 'n' roll in the 1950s signified the crossing of cultural thresholds, where white youth subcultures famously embraced what was traditionally considered "black" music, such as the sounds emanating from Motown and Southern juke joints. In the 1980s, hip-hop music emerged as another significant cultural movement, speaking to the experiences of inner-city life and confronting issues like racism through powerful lyrical content.