Christopher King isn’t your average DJ. The Grammy-winning engineer, producer and programming board member of the Richmond Folk Festival has no desire to be the cool guy in the room. All he cares about is music. Hear for yourself Sunday, July 20, at Steady Sounds, where he’ll spin the original 78s featured on his new compilation, “Alexis Zoumbas: a Lament for Epirus, 1926-1928.” He’ll also have choice, early-20th-century cuts from Albania, Greece and Turkey. Joining him is music journalist and author Amanda Petrusich, of The New York Times, reading from her new book, “Do Not Sell at Any Price,” which chronicles the lives of 10-inch shellac-disc collectors and includes a hilarious chapter on King and the Hillsville flea market. The needle is put to vinyl after Richard Lucyshyn’s introduction at 3 p.m. Plus, American primitive guitarist Daniel Bachman performs between sets. Free. steadysounds.com.