Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:4/4
K:G
['AF G2 BG DGBG FGAB c2 Bc', 'BG Bd g2 gf d2 ef gfga']  
X:1
L:1/8
M:4/4
K:G
 AF | G2 BG DGBG | FGAB c2 Bc | dggf d2 eg | fdcA BG :| Bd | g2 gf d2 ef | gfga bgaf | gagf d2 eg | 
 fdcA BG :|  