Is it the Lords of Discord series by Jocelynn Drake?
wh473v3r wrote:Hey guys! I need help finding a series. It’s about 4 bothers that were all converted to vampires at the same time. Their mom wasn’t stable and her vampire lover thought if he changed her it oils cure her but it drove her insane. He had adopted her four boys as his own but daddy vamp had to leave because his presence makes mom more unstable. Hey all play some type of musical instruments, which calm their mother. The boys start finding their mates but the counsel of vampires is trying to kill them because they counsel is corrupt and want to take over the world. The counsel is also blaming this family for trying to start a war.