> It seems that so many people my age mustered out of finding new music sometime in their college years. As they age they return to that music to, I imagine, remember that time in their life.
It also used to be an age where music is simply prevalent, but even that has changed.
Being associated with something even slightly popular can resurrect a 4 decades old hit familiar to the elders from obscurity. However, I haven't yet seen the reverse where something is really popular and drives across age groups.
Where the hell is the modern equivalent to Gangnam Style, for example? (I chose that because it's more modern, but you've got mega-hits that everybody knows from most decades--until about 2010 (see: check any karaoke night--start a betting pool on how long it takes until someone does something from Journey, for example--you won't reach the fifth song) or watch an entire venue join in for something from Neil Diamond)
Taylor Swift is supposedly killing it, yet I probably wouldn't be able to name anything she did in the last 10 years. Depeche Mode is releasing a bunch of new stuff--anybody heard any of it? Johnny Marr has released a bunch of new stuff in the last 10 years--I somehow actually bumped into one song somewhere in public. Has anybody not already a solid David Bowie fan heard anything off of Blackstar? How about Tori Amos? She's still just as brilliant as ever.