Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/4
Q:1/2=115
M:7/4
K:D
['d (f f)', 'A A B/G/'  
X:1
L:1/4
Q:1/2=115
M:7/4
K:D
"_No key/time sig,as writ" d (f f) (d/ c) (e e) c | d (f f) d c (A A) | d (f f) d/ c (e e) | 
 (B/c/d/A/) B G F (D D) :: (F/G/) A A B/G/ (c A A) | F/G/ A A B/G/ F (D D) | 
 (F/G/) A A B/G/ c (A A) | (B/c/)(B/A/) A/G/ F (D D) :|  