New Orleans's trumpeter Kermit Ruffins says the Second Line for Dr John kicks off today at 4pm in front of his Mother in Law Lounge in Treme. The cosmically-designed, voodoo-channeling, language-inventing, psychedelic, boogie-woogie, jazz, funk, rock, and r&b legend, and Crescent City music ambassador Malcolm Mac Rebennack passed away from a heart attack yesterday at the age of 77. Electronic dance duo Sylvan Esso sues Ticketfly and parent company Eventbrite for allegedly appropriating an image of them without permission and using it in ads. And British singer/songwriter Frank Turner is unhappy Detroit hardcore band The Armed used a vocal sample of him without asking.