Solely in terms of sound, which musical instrument is your favorite? When you hear this instrument or sound in a song, it should immediately stand out to you. Many people will pick an instrument they think is cool or that they would like to play. That's not what I'm asking. I'm asking what instrument or sound really deeply pleases you when you hear it. For example, my favorite instrument would probably be the guitar, but my favorite sounding instrument is undoubtedly the violin.