In regards to sound: If you take a tuning fork and smack it, it will vibrate. Vibration can be pleasurable. If the tuning fork is a brain, and the smack is music, then the result is a contented or slightly altered-from-the-norm feeling, that might be akin to the vibration of a tuning fork if tuning forks like vibrating.
This makes it seem like wireheading.
By the same logic eating you favorite food because it tastes good is also wireheading.
This is a thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. The previous "stupid" questions thread went to over 800 comments in two and a half weeks, so I think it's time for a new one.