I keep a limited amount of music on my iPhone, because it doesn’t have enough capacity to hold my whole library (and frankly some of my music is embarrassing). My husband has thousands and thousands of tracks on Google Music, and though I know the password and where to log in, I am not able to do so when suddenly, for instance, a client says, “I like [this artist].” I know we have that music available on Google Music, but it’s obscure enough that I don’t keep it handy in my iTunes.
This happened three times tonight alone.