Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/16
M:2/4
K:G
['d2dg fdAB']  
X:1
L:1/16
M:2/4
K:G
|: ga |"G" b2bg"C" a2af |"G" ggbg d2dg |"D7" fdAB cBce |"G" dBGA B2ga |"G" b2bg"C" a2af | 
"G" ggbg d2dg |"D7" fdAB cdef |"G" g2b2 g2 :: BA ||"G" G2GB d2g2 |"C" efge"G" d2dg | 
"D7" fdAB cBce |"G" dBGA B2{c}BA |"G" G2GB d2g2 |"C" ef(3(gfe)"G" d2dg |"D7" fdAB cdef | 
"G" g2b2 g2 :|  