Someone I know has an interesting "problem". She has been told repeatedly that her Beethoven sonatas sound flat and that she needs to pack a lot more anger into playing them. However, she is a person who just cannot get angry in real life. How can she "learn" to feel angry? Obviously, as a musician, one has to be an actor to some extent and be able to express any type of emotion at any given moment, whether one feels it or not. Is this a case for a psychologist, or are there ways to learn how to express emotions, particularly anger, through the piano in a convincing way?
First and foremost, I must state that Beethoven music is never angry; or it may be very reluctant to say that. When he's young he's influenced by the French Revolution, and this is why his music was very determined and with spirit. This is different from anger. If you get angry u'll bang the piano. When u play his music u must be very well-tempered.
Seriously: The only emotion that is good for your playing when it arises is a slightly joyful state. Regardless of which type of piece you are playing. Because in this slightly joful state, you have the real concentration and freedom of movement that you need. All other emotions only distract and lower the quality of the performance. The notion that the performer has to go through different feelings when playing is a layman's superstition. Best Wishes, Monk
To quote another user (from a topic on performance board)The only emotion that is good for your playing when it arises is a slightly joyful state. Regardless of which type of piece you are playing. Because in this slightly joful state, you have the real concentration and freedom of movement that you need. All other emotions only distract and lower the quality of the performance. The notion that the performer has to go through different feelings when playing is a layman's superstition.
Adding on to what others have said, a lot of music is not simply "angry" and "sad," but sinister, furious, tragic, yearning. No two pieces have the same driving force.Heck, if your friend likes the way she plays it, she shouldn't change a thing.