Construct a piece of music by converting the stated musical sequence into an alphabetical format and integrating the supplied motif.
X:1
L:1/8
M:9/8
K:G
['G2 B', 'G2 B']  
X:1
L:1/8
M:9/8
K:G
 G2 B B>AB B>AB | G2 B B>AG Bdg | G2 B B>AB B>AG | A3 EFG FED :: G2 B gdB gdB | G2 B gdB d2 a | 
 G2 B adB adB | cde edB A2 B :|  