Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
['F2 FA AFED', 'e>f eA e2 e2'  
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
"^Round O" F2 FA AFED | d2 df fe eA | F2 FA AFED | a2 f>e d4 || e>f eA e2 e2 | e>f eA e2 e2 | 
 a>b aB a2 a2 | a>b aB a2 a2 |]  