Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
Q:1/4=120
M:2/2
K:D
['dfdf cece dfdf A2 A2', 'd2 fg afaf afaf bagf g2 ef'  
X:1
L:1/8
Q:1/4=120
M:2/2
K:D
 A2 | dfdf cece | dfdf A2 A2 | B2 b2 bagf | gfed dcBA | dfdf cece | dfdf A2 A2 | Bbag fedc | 
 e4 d2 :: fg | afaf afaf | bagf g2 ef | gege gege | agfe f2 A2 | dfdf cece | dfdf A2 A2 | 
 Bbag fedc | d2 d2 d2 :|  