Topic
| Code | 20000027 |
|---|---|
| Name | rock and roll music |
| Description | A genre of music that originated in the United States during the late 1940s and early 1950s, evolving from African American musical styles such as gospel, jump blues, jazz, boogie woogie, and rhythm and blues. |
| Lft | 55 |
| Lvl | 4 |
| Rgt | 56 |