Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/16
M:2/4
K:G
['G2G2 BGBd']  
X:1
L:1/16
M:2/4
K:G
"G" G2G2 BGBd |"D7" F2F2 AFAc |"G" G2G2 BGBd |"D7" dcAF"G" G4 |"G" B2d2 d2(cB) |"Am" c2e2 e4 | 
"D7" A2c2 c2(BA) |"G" B2d2 d4 |"G" G2G2 BGBd |"D7" F2F2 AFAc |"G" G2G2 BGBd |"D7" dcAF"G" G4 |]  