There are certain devices that one uses in Romantic music that are appropriate only for Romantic or subsequent music. If you take those devices and apply them to earlier music, then it's totally inappropriate, and it makes the Classical music sound silly. However, if you were to use what you might call 'Classical devices' on Romantic music, historically, that would be correct! It very often benefits Romantic music, which is sometimes rather disjunctive, rather shapeless in comparison with Classical symphonic or sonata form. Romantic music very often benefits from that tighter organization that you get from Classical music.

Interview with pianist Leon Fleisher by Elijah Ho (October 1, 2014)