My art teacher is ISFP and my good friend is ISTP. My art teacher likes us to draw realistic things which I thought was so boring. I wanted to do something "avant-garde." We were supposed to take a candy wrapper and make it large-scale. Well, I had a Goetze's (which is just red, white and clear.) So, I thought to be "rebellious" I would simply just leave my paper white with a red line going down the middle. I turned it in...and she loved it! And I just had this look on my face like:
I made the mistake of visitng the art museum with my ISTP friend. She loathes contemporary art and can't understand why I like it so much. We spent about an hour looking at the renaissance and European art, but I soon got bored and begged her to PLEASE let us go up to contemporary. But, she didn't understand why I found it all so intriguing.
But, that's just my personal experience. I love SP's and don't want to offend them, so any SP's feel free to call me out if I'm wrong.
Also, I think you're right about the music and lyrics thing. The sensing musicians that I've seen tend to put more thought into the actual music, and not really care so much about the lyrics. Whereas, intuitive musicians tend to focus most of their attention on the lyrics, not so much on the music.
That's why I love musical collaborations between a sensor and an intuitive. (Lennon/McCartney, for example: Paul-ISFP, John-I'm actually not sure what type John was, but I get an N vibe from him.) You get someone who writes great music and someone who writes great lyrics, and then BAM! You have a great song.