The Genie likes Brazilian today

I have a theory that when you put your Ipod on Shuffle, the little Ipod Genie inside takes over and picks out the songs for that day. The reason behind this theory is that some days I hear almost all country or big band, or 4 or 5 songs by the same artist within a one hour period. It just doesn't seem too random to me. The Genie definitely has moods.