Design musical compositions that conform to the indicated framework and encompass the proposed musical concept.
X:1
L:1/8
M:4/4
K:D
['a2 fd A2 df aggf g2 ef', 'd2 B2 AfAf'  
X:1
L:1/8
M:4/4
K:D
 fg | a2 fd A2 df | aggf g2 ef | g2 ec ABce | baa^g a2 f=g | a2 fd A2 df | aggf g2 ef | 
 g2 ec ABce | d2 dc d2 :: B2 | AfAf Aff>g | feef e2 EF | GeGe Gee>f | edde d2 B2 | AfAf Affg | 
 a2 gf B2 ce | fecB ABce | d2 dc d2 :|  