Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:4/4
K:G
['BGGF GBAF D2 =CD =FDCE DGG^F G2', 'fdcA dggf g2 ag fgaf g3 f']  
X:1
L:1/8
M:4/4
K:G
 BGGF GBAF | D2 =CD =FDCE | DGG^F G2 Bc |1 d=fec dBcA :|2 d=fec d2 Bc || dggf g2 ag | fdde fdcA | 
 dggf g2 ag | fgaf g3 f | defg a3 g | fde^c defg | afge fde^c | d2 eg fd=cA ||  