Compose a musical piece by integrating the alphabetic representation of the specified sequence and the provided motif.
X:1
L:1/8
Q:3/8=80
M:6/8
K:G
['B2 c d3 fed']  
X:1
L:1/8
Q:3/8=80
M:6/8
K:G
"^coro 1o" B2 c | d3 fed | e3 d3- | d2 z"^coro 2o" B2 c | d3 fed | e3 d3- | d2 z"^coro 1o" B2 c | 
 d3 fed | c3 B3- | B2 z e2 d | c3 ded | c3 B3- | B2 z"^coro 2o" e2 d | c3 ded | c3 B3- | B2 z :|  