Complex sentence: The theatre was originally intended to be a summer home for the National Symphony Orchestra, it later became a venue for popular music concerts, including performances by Jimi Hendrix, Janis Joplin, Led Zeppelin, The Grateful Dead, and The Who.
Split into simpler sentences: The theatre was originally intended to be a summer home for the National Symphony Orchestra. It later became a venue for popular music concerts, including performances by Jimi Hendrix, Janis Joplin, Led Zeppelin, The Grateful Dead, and The Who.