Okay I recently started a band and we are playing simple covers of songs, Shadowplay and some others. Well, we take turns picking songs. And suprisingly, our lead guitarist picks New Divide by Linkin Park -_-. Atm we are all learning are parts. Well at school our drummer says "Hey man! How bout we learn Tom Sawyer by Rush?" our guitarist goes "HA! No!" and storms off. He is a perfectionist and is afraid to play anything hard b/c he might mess up. Which is different than me, drummer, rhythm guitar, and our vocals. We will try any song they throw at us. But our guitarist is incredibly negative. How to fix this?