Arbiter is a swedish one man band that orchestrates electronic manouvers using manual dexterity on tangible objects, whilst constantly having a trick up his sleeve.
Pronunciation: /ˈɑːbɪtə(r)/
arbitrary:
1. (usually of a decision) Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random
2. Determined by impulse rather than reason; heavy-handed.
3. (mathematics) Any and all possible.
4. Determined by independent arbiter.