Create music compositions that adhere to the given structure and incorporate the provided musical concept.
X:1
L:1/8
M:4/4
K:D
['eA (3AAA', 'a2 fa bafb'  
X:1
L:1/8
M:4/4
K:D
 eA (3AAA eA (3AAA | e2 fd edBd | eA (3AAA eA (3AAA | d2 ed BGBd | eA (3AAA eA (3AAA | e2 fd edBd | 
 g4 f3 e | dfec dBAf :| a2 fa bafb | afef edBA | a2 fa bafb | afed B2 A2 | a2 fa bafb | afef edBA | 
 g4 f3 e | dfec dBAF :|  