So, without special tuning and with barred, the chords become:
E => Eb
A => Ab
B7 => Bb7
E A E
Amazing Grace, how sweet the sound,
B7
That saved a wretch like me.
E A E
I once was lost but now am found,
B7 E
Was blind, but now I see.
E A E
T'was Grace that taught my heart to fear.
B7
And Grace, my fears relieved.
E A E
How precious did that Grace appear
B7 E
The hour I first believed.
E A E
Through many dangers, toils and snares
B7
I have already come;
E A E
'Tis Grace that brought me safe thus far
B7 E
https://www.coveralia.com/acordes/amazing-grace-judy-collins.php
and Grace will lead me home.
E A E
The Lord has promised good to me.
B7
His word my hope secures.
E A E
He will my shield and portion be,
B7 E
As long as life endures.
E A E
Yea, when this flesh and heart shall fail,
B7
And mortal life shall cease,
E A E
I shall possess within the veil,
B7 E
A life of joy and peace.
E A E
When we've been here ten thousand years
B7
Bright shining as the sun.
E A E
We've no less days to sing God's praise
B7 E
Than when we've first begun.
