Final answer:
Bebop, a jazz subgenre, primarily grew out of jam sessions where musicians freely improvised, creating new musical styles and techniques.
Step-by-step explanation:
The musical innovations of bebop primarily grew out of jam sessions. These jam sessions were gatherings of musicians where they freely improvised, creating and refining new musical styles and techniques. During the Jazz Age, jazz music was born out of African American communities and later spread across America and overseas. It combined various musical traditions including blues and ragtime, leading to its innovative sounds.
Bebop, a subgenre of jazz, turned jazz from dance-focused to music-focused, emphasizing complex melodies over simple dance beats. This shift was pioneered during these jam sessions, which were fertile grounds for the musician's creativity and fresh ideas to flourish. The jam session was an essential part of the jazz tradition—one that eventually led to the creation of bebop in the mid-1940s.
Learn more about bebop