Bad Violet and Sons Lunaris share the bill for tonight’s live music at The Porch. Bad Violet is made up of members from Feverslip, Victim of Circumstance and Red Sky Mary — no gimmicks, no costumes, just East Coast rock ‘n’ roll at its finest. Sons Lunaris is an award-winning rock band originally formed in Lowell. Their style, rooted in blues-based hard rock, incorporates elements of psychedelic, funk, alternative-rock, and folk music. General admission tickets are $10 through Eventbrite.