Wagner exploited all forms of expression at a composer's disposal — harmony, dynamics, orchestration — to the extreme. His music is highly emotional, and at the same time Wagner has extraordinary control over the effect he achieves. That's why there is also something manipulative about Wagner's music, which is not to say that it's not honest. In fact, I believe that it's totally honest, but it also happens to be manipulative.
SPIEGEL Interview with Daniel Barenboim