Compose music pieces conforming to the prescribed pattern and incorporating the provided musical concept.
X:1
L:1/8
M:4/4
K:D
['d2 cA']  
X:1
L:1/8
M:4/4
K:D
 gfe | d2 cA GEFE | D2 FA dAFA | d2 cA GEED | (3Bcd ef g2 fe | d2 cA GEFE | D2 FA dAFA | 
 d2 cA GEED | (3Bcd ec d3 g | fgaf d3 g | fgaf g2 ag | fgaf d=cAB =cdef (3gag fe | fgaf d3 g | 
 fgaf g2 ag | fAeA d=cAB | =cdef g2 fe |]  