You're successful if you can get one person to pick it up and put it on the turntable and go, Wow, thanks for writing that!
“I've performed solo for 20 years now, but I don't do much of it, because if you only play alone, you go crazy and out of tune and play foolish music.”
“I don't want to be known as this goody-two-shoes who can only do comedies where puppies are licking peanut butter off my face.”