Possible Clues:

• Used a turntable
• Handled the tunes at a party, say
• Worked a reception, say, informally
• Worked the turntables
• Spun tracks at a party
• Provided tunes for a party, in brief
• Played music at a club
• Worked at a wedding reception
• Handled the music (literally and figuratively)
• Was in charge of the music