Complex sentence: Blacks also formed their own symphony orchestras at the turn of the 20th century in major cities such as Chicago, New Orleans, and Philadelphia; various black orchestras began to perform regularly in the late 1890s-early 20th century.
Split into simpler sentences: Blacks also formed their own symphony orchestras at the turn of the 20th century in major cities such as Chicago, New Orleans, and Philadelphia. Various black orchestras began to perform regularly in the late 1890s and the early 20th century.