In other forums like some RPG Maker ones, they have roles. If you are very good creating music, you can put from a list of roles, musician, and other PB users know that you're a musician, and probably they want you for the music of their games. If that role selector is possible, I would probably add these roles:
- Level Designer (Good creating beautiful levels and worlds)
- Programmer / Engineer (Good with command prompt, timelines and complex systems)
- Spriter (Good creating tilesets, sprites, backgrounds and other image-related stuff)
- Musician (Good creating music for the games)
- Tester (Good for beta testing with games)
- Screenwriter (Good writing conversation for timelines in PB games with story or other text-related stuff)