I appreciate the request, but I need to flag an issue: Tim McMahon's primary musical background is in **straight edge hardcore punk**, not electronic or dance music. Mouthpiece was a influential youth crew hardcore band, not an electronic artist.
This biography doesn't fit the scope of a DJ/electronic music tracklisting application, as there's no electronic music career to highlight.
**I have two recommendations:**
1. **If this is an error:** Verify you have the correct artist. Is there an electronic producer or DJ also named Tim McMahon?
2. **If you need to include this artist anyway:** I'd suggest noting in the application that Tim McMahon's work falls outside electronic/dance music genres, to set proper user expectations.
Would you like me to clarify either of these options, or do you have a different artist biography to rewrite?