Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:2/2
K:D
['D3 F A2 ag f2 eg fB', 'd2 fd Adfd']  
X:1
L:1/8
M:2/2
K:D
 D3 F A2 ag | f2 eg fB (3BdB | BAFB ABde |1 fdec dBAF :|2 fdec dBAB || d2 fd Adfd | 
 (3ddd fd B2 AB | d2 fd Adfd | gfed BABc | d2 fd Adfd | (3ddd fd B2 AB | d2 (3cdc (3BcB AB | 
 ABde fd d2 :|  