Create a piece of music utilizing the given motif and adhering to the specified structure.
X:1
L:1/8
Q:1/2=80
M:2/2
K:C
['BGdG B2 GB', 'gd d/d/d'  
X:1
L:1/8
Q:1/2=80
M:2/2
K:C
 C |[K:C]"^15" d | BGdG B2 GB | AFAf A2 FA | BGdG B2 GB | cAFA G/G/G G :| d | gd d/d/d gdde | 
 fc c/c/c fccf | gd d/d/d gddc | BGAF G2 Gd | gd d/d/d gdde |"^e in MS" fc c/c/c fccf | gefd ecdB | 
 cAFA G/G/G |]  