When I created a 3000-song playlist, I did it alphabetically, by artist. Thus, e.g. 70 Beatles songs were added before I moved on to the next artist, etc. I play this list in shuffle mode, on a daily basis. Beatles songs seem to appear frequently in the mix for several days, and then only occasionally for a few weeks. After a few weeks, the queue once again includes a heavy mix of Beatles songs. Same with other artists. My question: Is every selection in the queue drawn from among all 3000 songs in the playlist?