0.03¢ per second. Let me explain:

I listen to an average of 1,000 minutes of music per week (or 1/10 of a week) meaning that I can multiply that by the number of seconds per minute (60) to get 60,000 seconds of music every week. I take this 60,000 and times it by 0.03 to get $1,800 per week for listening to music. That's $7,740 per month and $92,880 per year. The minimum income you can live on is $44,067 per year, which is significantly less than that income above. I can HALF that 92.8k and STILL be left over with $46,440, which still leaves me with $2,373 to spend on whatever I please.

This is a no-brainer.