Standard (EADGBE)

The lower-case "b"s and "5"s represent "flat 5"...

Moon river

Wider than a mile

 I'm crossing you in style

 Someday

 Oh, dream maker

 You heart breaker

 Wherever you're [Fm7#b5]go - ing

 I'm go- ing your way

Two drifters

Off to see the world

 There's such a lot of world

 To see

 We're af- ter the

 [Fm7#b5]Same rainbow's end

Waiting round the bend

 My Huckleberry friend

,,[Hold]

Moon river and me...