Complex sentence: Her single "Can't Love You Tonight" boldly addressed AIDS at a time when the disease was a taboo subject, and she was an ally to the gay community, and people with AIDS long before the masses caught up.
Split into simpler sentences: Her single "Can't Love You Tonight" boldly addressed AIDS at a time when the disease was a taboo subject. Guthrie was an ally to the gay community, and to people with AIDS long before the masses caught up.