I've got the music in me....

I like to think of my musical tastes as "eclectic", which I believe to mean "choosing the best of many and
varied genres"...However, my research shows me that the word is derived from the Greek eklektikos...which means "a guy who can't make up his mind as to what he likes on any particular day and/or at any particular time depending on his mood and/or his level of hunger." Those Greeks call 'em like they see 'em...
I was looking over my iTunes library yesterday and had quite an ear opening experience. From Adele to ZZ Top, I realized just how varied my musical choices are...AC/DC to Josh Groban...Dean Martin to Depeche Mode...The Moody Blues to the Marines Hymn...
My iTunes library consists of 5.63 gigabytes of music.
That's 1,379 songs.
That's 3 1/2 DAYS of music.
So, why is it that when I set my iTunes on "shuffle" I only like every 7th song???....