Chord/Tab song: Long Grey Mare

The bass goes as follows:

[Am7] [Dm7] [Em7]

E |------------------|-----------------|-----------------|
B |------------------|-----------------|-----------------|
G |------------------|-----------------|-----------------|
D |------------------|--4-4-5-5-5-5-7-7|--6-6-7-7-7-7-9-9|
A |--4-4-5-5-5-5-7-7-|-5---------------|7----------------|
E |-5----------------|-----------------|-----------------|


Any variation is welcome. Listen to Gary Moore on Blues for Greeny for inspiration.
His cover is pure perfection!

Verse 1 (Am Dm Am x 2 / Em Dm Am)

[Am]I've got a long grey mare, she won't let me ride
I got [Dm]a long grey mare, she won't let me ride
She ma[Em]kes me brush her in the morning
And [Dm]put her to bed every ni[Am]ght

Verse 2 (Am Dm Am x 2 / Em Dm Am)

Long grey mare, why can't we be just like before
Long grey mare, why can't we be just like before
We used to ride so hard
Until we just couldn't ride no more

Break:

Verse 3 (Am Dm Am x 2 / Em Dm Am)

Look at me grey mare, don't I feed you everyday
Look at me grey mare, don't I feed you everyday
But when I dig you with my spurs
You turn around the other way