ENGLAND(Wales)"ENGLAND(Wales)" is not in the list (IRELAND(Munster), IRELAND(Connaught), IRELAND(Leinster), IRELAND(Ulster), SCOTLAND(Argyll and Bute), SCOTLAND(Perth and Kinross), SCOTLAND(Dumfries and Galloway), SCOTLAND(South Ayrshire), SCOTLAND(North East), SCOTLAND(Highland), ...) of allowed values for the "Has historical geographical allegiances" property.
X:1
T:Rhyfclgyrch Cadpen Morgan
T:Captain Morgan’s March
M:C
L:1/8
R:Air
Q:"Maestoso"
B:Edward Jones – Musical and Poetical Relicks of the Welsh Bards (1784, p. 140)
Z:AK/Fiddler’s Companion
K:G
D2G>G G2D2|G>A B>A G4|c2 (c>d) B2G2|A2A2A2z2:|
|:{D}d2d2{c}B2G2|(c>d) (cB) A3z|(G>B) (A>G) F2 (GA)|T(A3G) G4:|]
X: 1
T:Captain Morgan's March
M:C
L:1/8
Q:150
C:Trad
S:51 Welsh Airs
R:March
A:Wales
H:From a facsimile c.1840: A Choice Collection of Fifty-One Welsh Airs
H:adapted for The Harp, Piano-Forte, Harpsichord,
H:Violin, or Flute by Edward Jones
H:"Harper to His Late Majesty King George IV, when
H:Prince of Wales".
Z:brian_martin12345@yahoo.com
F:http://jc.tzo.net/~jc/music/abc/mirror/BrianMartin/RhyfelgyrchCabdenMorgan.abc
K:G
"Maestoso"D2G>GG3D|G>A B>AG4|c2c>d B2G2|A2A2A2z2:||!
{D}d2d2B2G2|(c>d) (c>B)A3z|(G>B) (A>G)F2(GA)|{AB}A3GG4:|