The design concept revolves around the popular "COEXIST" logo (which can often be seen on bumper stickers). In the original concept (images attached), individual letters in the word are replaced with religious symbols… indicating that we should all be at peace with each other and leave room for those with varying beliefs.
Your design will spin this concept into something relevant to passionate DJs. Instead of religious symbols, the letters will incorporate (or be replaced by) various media formats and methods that are used by DJs… e.g. - vinyl records, CDs, USB sticks, laptops, controllers. How you wish to incorporate them into the "logo" is up to you, but the word should be recognizable (able to be read without the wearer explaining what it says to everyone).
Many DJs are biased towards one format/style or another… to the point of bashing other DJs for their choice. ("Real DJs use vinyl" vs. "Vinyl DJs are dinosaurs stuck in the past".) The wearer of this shirt wants to indicate that it's not the method or format that matters, but the output.
Note - the design should fit within a 12 x 14 area for the front of the shirt (no back, sleeves, etc.)