The engineer has a lot of influence on the music. Not only are they responsible for recording the vocals, adlibs, fills, etc. The engineer is responsible for adding effects, working with the levels, and mixing not only the lyrics but also the beat of the song instrument by instrument. Robs nickname is Rob Reverb for his use of the reverb effect that he used on so much of the Strange Music tracks. Without a doubt Strange will have a different sound if they have a different engineer. No two engineers make music exactly alike.