Question: Chris Grieder did what for this rock band formed in 1992 and based in Portland, Oregon?
Sentence (from "Chris Grieder"): Grieder has directed music videos internationally for artists such as Mutemath, Luna Halo, Modest Mouse, There For Tomorrow, Avery, Stefanie Scott, Transmit Now, and UK Brit-pop band Wall Street Riots.
Relevant evidence: Yes