Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
M:2/2
K:D
['dD D2 FDFA', 'd2 fd'  
X:1
L:1/8
M:2/2
K:D
 dD D2 FDFA | dfaf gfec | dD D2 FDFA | GFEF GABc | dD D2 FDFA | dfaf gfeg | fdec dBAF | 
 GFEF GABc :| d2 fd Adfd | d2 fd BABc | d2 fd Adfd | BGEF GABc | d2 fd Adfd | d2 fd cdeg | 
 fdec dAFA | GFEF GABc | d2 fd Adfd | d2 fd BABc | dcde fdAF | GEFD E3 z | a3 b afdf | gfef gbag | 
 fdec dBAF | GFEF GABc ||  