Q:  1.5.18  10:30 pm Why is it called that if it has no Eb
A: it does have Eb. it is the Eb major chord triad (notes Eb, G, and Bb), except the bass player would play F instead of Eb. they call it Eb over F because it's an Eb chord on top, and F in the bass. in the biz it's written as Eb slash F (Eb/F) at least that's how they do it where i'm from