I personally disagree. Timbre will give the music a certain quality, and while it's no doubt a big part of the experience, I think the dynamics of piece will be

I personally disagree. Timbre will give the music a certain quality, and while it's no doubt a big part of the experience, I think the dynamics of piece will be much more central to the emotional response. If a song has a sax solo that really touches your heart, and you replaced it with a trombone playing the exact same solo instead, the timbre would be completely different, but the emotions that it would evoke would likely be almost identical. The timbre would mainly affect how well one or the other might blend with the rest of the orchestration. If someone played Ode To Joy on a recorder with proper dynamics, I can guarantee they could make it sound good. All my personal opinion of course.