Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:6/8
K:D
['d2 f', 'f2 e'  
X:1
L:1/8
M:6/8
K:D
 F2 A d2 f | F2 A d2 f | e2 A cBA | e2 A cBA | F2 A d2 f | F2 A d2 f | e2 A cBA |1 f2 e d2 A :|2 
 f2 e d2 f |: a2 d f2 e | d3 def | g2 f e2 d | Bcd efg | a2 d f2 e | d3 def | ged cBA |1 
 f2 e d2 f :|2 f2 e d2 A ||  