Compose a musical piece by integrating the alphabetic representation of the specified sequence and the provided motif.
X:1
L:1/8
M:6/8
K:D
['ecA (d2 f) ecA', 'G F2']  
X:1
L:1/8
M:6/8
K:D
 a3 g3 | fdf ecA | (d2 f) ecA | (d2 f) ecA | dcd ede | fef ^gfg | a2 d c2 B | A3 A3 :: D2 F E2 G | 
 F2 A G2 F | GAB AB=c | B3 A3 | GFG AGA | BAB ^cBc | d2 G F2 E | D3 D3 :|  