When playing songs from a general playlist on random, does the system:
1. play each song only once until all songs in that playlist are played and then start a new random sequence?
or
2. rely only on the 6 hour repeat limit to make sure songs aren't played twice and can result in some songs played more often than others in the same playlist?
I wonder because I want to limit songs repeating over longer periods of time as well as over the short term and knowing this will help me in how to proceed.