I have transcribed five multi-part versions below for midi. Copy and paste them (one by one) into CONCERTINA's ABC Convert-A-Matic.

X:1
T:New Britain
M:3/4
L:1/4
Q:1/4=72
S: Southern Harmony, 1835
K:C
V:1
%%MIDI program 22
c|e2e|g2g|e2e|d2d|e2c/e/|g2f/e/|d2d|
V:2
%%MIDI program 72
G|c2e/c/|e2d|c2A|G2G|c2e/c/|e2d/e/|g2d/e/|
V:3
%%MIDI program 70
C,|C,2G,|E,2G,|C,2E,|G,2G,|C,2G,/A,/|C2A,|G,2G,|
V:1
c2c|e2g|e2e/d/|c2c|G2c|e2d|e2||
V:2
g2e/d/|c2A/G/|c2A/G/|G2G|c2e/c/|e2d|c2||
V:3
C2A,|G,2E,|G,2E,/D,/|C,2C,|C,2E,/G,/|A,2G,|C,2||
V:1
c|e2e|g2g|e2e|d2d|e2c/e/|g2f/e/|d2d|
V:2
G|c2e/c/|e2d|c2A|G2G|c2e/c/|e2d/e/|g2d/e/|
V:3
C,|C,2G,|E,2G,|C,2E,|G,2G,|C,2G,/A,/|C2A,|G,2G,|
V:1
c2c|e2g|e2e/d/|c2c|G2c|e2d|e3||
V:2
g2e/d/|c2A/G/|c2A/G/|G2G|c2e/c/|e2d|c3||
V:3
C2A,|G,2E,|G,2E,/D,/|C,2C,|C,2E,/G,/|A,2G,|C,3||

X:2
T:Amazing Grace
M:3/4
L:1/4
Q:1/4=80
S:E.O. Excell, Make His Praise Glorious, 1900
K:Ab
V:1
%%MIDI program 48
|:E|A2c/A/|c2B|A2F|E2E|A2c/A/|c2B/A/|e2||
V:2
%%MIDI program 50
|:C|E2E/C/|E2E|F2D|C2C|E2E|E2E/E/|E2||
V:3
%%MIDI program 51
|:A,|C2A,|A,2A,|A,2A,|A,2A,|A,2A,|A,2G,/A,/|G,2||
V:4
%%MIDI program 49
|:A,,|A,,2A,,|E,2C,|D,2F,/A,/|A,2A,,|C,2A,,/C,/|E,2D,/C,/|E,2||
V:1
c3/4e1/4|e3/2c/e/c/|A2F/A/|A3/2B/A/F/|E2E|A2c/A/|c2B|A2:|
V:2
E|E2E|E2F|E2F/D/|C2C|E2E/C/|E2D|C2:|
V:3
A,3/4C1/4|C3/2A,/C|A,2A,|C3/2D/D/A,/|A,2A,|A,2A,|A,2G,|A,2:|
V:4
A,|A,2A,|C,2D,/F,/|A,2D,|A,,2A,,|C,2E,|E,2E,|A,,2:|

X:3
T:Amazing Grace
M:3/4
L:1/4
Q:1/4=80
K:G
S:E.O. Excell, Coronation Hymns, 1910
V:1
%%MIDI program 48
|:D|G2B/G/|B2A|G2E|D2D|G2B/G/|B2A|d2B|
V:2
%%MIDI program 50
|:B,|B,2D|D2C|B,2C|B,2B,|B,2D|D2D|D2D|
V:3
%%MIDI program 51
|:G,|D,2G,|G,2F,|G,2G,|G,2G,|D,2G,|G,2F,|G,2G,|
V:4
%%MIDI program 49
|:G,,|G,,2G,,/B,,/|D,2D,|G,,2G,,|G,,2G,,|G,2G,,/B,,/|D,2C,|B,,2G,,|
V:1
d3/2B/d/B/|G2D|E3/2G/G/E/|D2D|G2B/G/|B2A|G2:|
V:2
D2D|D2D|C3/2D/C|B,2D|B,2D|D2C|B,2:|
V:3
B,3/2G,/B,/G,/|G,2G,|G,2E,/G,/|G,2G,|G,2G,/B,/|G,2F,|G,2:|
V:4
G,2G,|B,,2B,,|C,3/2B,,/C,|G,,2B,,|E,2D,|D,2D,|G,,2:|

X:4
T:St. Mary's
M:3/2
L:1/4
Q:1/4=120
S:Columbian Harmony, 1829
K:G
V:1
%%MIDI program 50
|:z2A2|B4d2|d4d2|g4g2|d4d2|d4d2|g4d2|d4d2|
V:2
%%MIDI program 49
|:z2D2|E4G/F/E/F/|G4GE|E4E2|F4D2|D4G2|G4A2|B4B2|
V:3
%%MIDI program 75
|:z2DE|G4B/A/G/A/|B4AG|G4E2|D4D2|G4BG|B4A2|d4B2|
V:4
%%MIDI program 51
|:z2D,2|G,,4D,2|G,4G,A,|B,4A,G,|A,4B,A,|G,4G,2|G,4D,2|G,4G,2|
V:1
d4g2|g4d2|B4ed|d4d2|d4g2|g2d2c2|B4:|
V:2
B4BG|B4G2|E4E2|F4FE|D4G/F/E/F/|G4F2|G4:|
V:3
d4Bd|G4EG|G4E2|D4DE|G4B/A/G/A/|B4A2|G4:|
V:4
G,4G,2|G,4G,A,|B,4A,G,|A,4B,A,|G,4G,2|G,4D,2|G,4:|

X:5
T:Gallaher
M:3/2
L:1/4
Q:1/4=120
S:Columbian Harmony, 1829
K:C
V:1
%%MIDI program 49
|:c2|c4GA|c4ge|c4de|G4c2|c4GA|c4ag|g4c2|
V:2
%%MIDI program 75
|:GA|c4ec|e4dc|c4A2|G4GA|c4ec|e4|de|g4e2|
V:3
%%MIDI program 50
|:C,2|C,4CA,|C4G,2|C,4D,E,|G,4G,E,|E,4CA,|C4D,E,|G,4C2|
V:1
c4G2|c4e2|g4ed|d4c2|c4GA|c4ge|c6:|
V:2
g4eg|c4c2|c4A2|G4GA|c4ec|e4dc|c6:|
V:3
C4C2|A,4G,2|C4C,2|G,4G,E,|C,4CA,|C4G,2|C,6:|