I think when I was pretty young I got really into the tone of my instrument and I remember just playing one note for an hour to just kind of feel the resonance of the violin.
It's not set in stone. I like to keep it rolling and changing, and so I am like, "Great, I get to remake my song."
Since I first picked up the violin, I've been very interested in tone and texture: I would have very visceral reactions to the texture of a snare drum or a pedal steel guitar or a violin.