Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:4/4
K:D
['BA (3Bcd e2 de faaf egfe', 'faaf egfe'  
X:1
L:1/8
M:4/4
K:D
 FA | BAFA D2 FA | BA (3Bcd e2 de | faaf egfe | dfed B2 dA | BAFA DAFA | BA (3Bcd e2 de | 
 faaf egfe | d2 d2 d2 :: fg | afdf a2 gf | efga b2 ag | faaf egfe | dfed B2 dA | BAFA D2 FA | 
 BA (3Bcd e2 de | faaf egfe | d2 d2 d2 :|  