If there is nothing I know at all, I would know that music gives vibes and enhances a person's courage.
It becomes much more when you are playing the music instead of just listening to it, I would seem like you are the courage giver. This is much more is why I love music.
The keyboard is just an instrument amongst others that can be used to make music. So, I would not want to limit this prompt to keyboard but every instrument used to make music.
Then I'll say music soothings the heart, and it gives joy, it motivates. Then we can say courage comes too...
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