Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:2/2
K:G
['g2 Bc d']  
X:1
L:1/8
M:2/2
K:G
 Bc |"G" dedB GBdB |"Am" cdcB A2 g2 |"D7" fgfe dfaf |1,3"G" gage"^(D7)" d2 :|2,4 
"^(G)" gfga"G" g2 :: Bc |"G" d g2 g g2 Bc |"D7" d f2 f f2 AB |1,3"C" c e2 e"^(D7)" e2 dB | 
"G" GABc"^(D7)" d2 :|2,4"C" c e2 e"^(D7)" e2 dc |"G" BG"D7"AF"G" G2 :|  