Compose a musical piece by integrating the alphabetic representation of the specified sequence and the provided motif.
X:1
L:1/8
M:2/4
K:D
['a2 a2 b2 b2 abag fe d2', 'd2 f2 f2 g2 g2 efga fe']  
X:1
L:1/8
M:2/4
K:D
 a2 a2 | b2 b2 | abag | fe d2 | fgaf | bagf | ed c/d/e/c/ | d2 d2 :: f2 f2 | g2 g2 | efga | fe d2 | 
 fgaf | bagf | ed c/d/e/c/ | d2 d2 :|  