If we listen to say 10 hours of music everyday, in one year that would be 3,650 hours. One hour say is one album. And assuming we do that for the remaining of what's left of our life on earth, say for the average people here @ ASR, another 30 years non-stop, starting today now...that would be 109,500 music albums...audio files, all that jazz.
Now, let's round this to say 100,000 and never listening to the same music album, audio file twice. And, for simplicity sake let's say 10 tunes per album, some have only two long tunes, others have two dozens. That's 1 million tunes.
Now, some people spend more time than this in music listening, others much less, some are serious, others are background music listeners, some listen to the same album twice, or even thrice (I listened to Wish you were Here seventeen times).
From this average scientific data, reslistically speaking, life expectancy on a high positive note full of hope and best wishes, how much music do you need till expiring date?