lesblank,
'Tis a jazz song (on this folk music site, fie on thee Joe O.). So you get jazz chords. Them there jazz players make up all these fancy chords in barre formations so they just slide 'em up and down the neck any ol' wheres they wants. Drives us authentic folk guitarists crazy.
But, if you like the song, Lesblank, you can capo on the first fret and play in D. I hereby translate from Eb to D. Eb=D / Bb7=A7 / Eb=D/G=F# Eb7=D7 / Ab6=G6 Fm=Em / Eb=D / Eb6=D6 / Bb=A / Bb7=A7 / Eb=D Bb7=A7 / Eb7=D7 / Ab=G / - Ab6=G6 / Eb6=D6/G=F# Eb7=D7 / Ab6=G6 Fm=Em / Eb=D/Bb=A / F9=E9/Bb=A Bb7=A7 / Eb=D
Of course, no one in their right mind knows "6ths" and "9ths". Sometimes you can just play the major and ignore 'em. What they're tryin' to do is follow the melody notes within the chord. So, you could do the same, playin' single notes instead of them there full chords. Us folk guitarists know you can play one note at a time if your want to.
Good luck with the song!!
Roger in Baltimore