Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
Q:3/4=50
M:3/4
K:D
['.d2 .d2', "d'4 a2", '(fg) .e2 .e2 (ef)'  
X:1
L:1/8
Q:3/4=50
M:3/4
K:D
 (ABc) |"^$" .d2 .d2 .d2 | d4 d'c' | (bagfed) | c2 e2 (Ac) | .e2 .e2 .e2 | e4 (ag) | (fedcBA) | 
 d4 ::{e} (dc) | dfgabc' | d'4 a2 | (a2 g2 e2) | (g2 f2 d2) | (dfgabc') | d'4 a2 | abagfe | d4 :: 
 de | .f2 .f2 (fg) | .e2 .e2 (ef) | .d2 .d2 (df) | (ec A2) (de) | .f2 .f2 (fg) | .e2 .e2 (ef) | 
 (dA)(df)ed | d4 :|  