Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/8
M:9/8
K:G
['', 'cAG GDG G2', 'd cde =fed', 'BGB AFA G2 A', 'FGA =fed']  
X:1
L:1/8
M:9/8
K:G
 d |: cAG GDG G2 d | cAG GFG Add | cAG GDG G2 A |1 FGA =fed cAd :|2 FGA =fed cAG || def gaf g2 f | 
 def gbg afd | cde =fge f2 d | cde =fed cA^F | def gaf g2 f | def gbg afd | bag agf g2 d | 
 cde =fed cAG || BGB AFA G2 A | BAB GBd cBA | BGB AFA G2 A | FGA =fed cA^F | BGB AFA G2 A | 
 BAB GBd cBA | fdf ece d2 A | FGA =fed cAd |: cAG GDG G2 d | cAG GFG Add | cAG GDG G2 A |1 
 FGA =fed cAd :|2 FGA =fed cAG |]  