Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
Q:1/8=140
M:2/4
K:Gmin
['A B', "ga{c'} ba"]  
X:1
L:1/8
Q:1/8=140
M:2/4
K:Gmin
"^Vocal Melody" G A B A | B A B A | G A B A | B G2 z | G A B A | B A B A | B d D D | G G2 z |] 
[M:2/4]"^Fiddle Melody" ga{c'} ba |{c'} ba{c'} ba |1 ga{c'} ba | b a2 z :|2 b{^c'}d' dd | 
{^f} g g2 z |]  