Psychedelic pop-folk group Thee Oh Sees is the latest project of singer and songwriter John Dwyer, who’s dabbled in numerous musical styles including noise rock, death metal and punk. With Thee Oh Sees, Dwyer presents a lo-fi electric-acoustic sound rich in reverb that creates a mellow mood, perfect for enjoying the night. After a string of popular albums, Thee Oh Sees offered up two releases in 2011, the pop-heavy “Castlemania” and the heavier “Carrion Crawler/The Dream.” The group’s latest effort, “Putrifiers II,” was released Sept. 11. Thee Oh Sees performs at Strange Matter on Friday, Sept. 21, at 8 p.m. $15. The show is sold out, but watch for Strange Matter to possibly release more tickets. strangematterrva.com.