I have transcribed this tune from an Australian traditional fiddler and am at a loss for its derivation. Stan Treacy played mostly jigs, polkas, schottisches and waltzes so this stood out as unusual. It is clearly latin-american style and I vaguely recall dancing to music like this at school socials - the cha cha barn dance probably - and the Alan Ford dance band. Anyway here is the abc:
X:1
T:Crookwell Goes Latin-American
N:from the fiddle playing of Stan Treacy, Crookwell, NSW
N:collected by Don Brian and transcribed and arranged by Dave Johnson
N:Play (AB) x times then finish with A
M:4/4
L:1/8
K:G
P:A
Bc|"G"dd2 d dB cd|"Am"e e2 ee3e|"D7"ff2f fd ef|"G"gf ga b2Bc|
"G"dd2 d dB cd|"Am"e e2 ee2ag|"D7"ff2f fd ef|"G"gg bb g2||
P:B
d2|"G"gg2 g g2 ed|"Am"cc2c A2 ag|"D7"f3 fd3d |"G"BB BAG2zd|
"G"gg2 g g2 ed|"Am"cc2c A2ag|"D7"f2fe dc BA|"G"G2"D7"af"G"g2||
Dave