Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:2/2
K:D
['AFFD G2 (GB) AFFD (E2 E)B AFED', '(de)fd (gf)ec (de)fd (ec)BA (de)fd (gf)eg faef'  
X:1
L:1/8
M:2/2
K:D
 B |O AFFD G2 (GB) | AFFD (E2 E)B | AFED GABd | AGFE DdcB | AFFD G2 (GB) | AFFD (E2 E)B | 
 AFED GABd | A[Gg][Ff][Ee] [Dd]2- [Dd] || A | (de)fd (gf)ec | (de)fd (ec)BA | (de)fd (gf)eg | 
 faef (d2 d)A | (de)fd (gf)ec | (de)fd (ec)BA | (de)fd (gf)eg | faef deBdO ||  