Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:4/4
K:D
['(fa)(de)(cd) e3 f g2 (fa)(de)(cd) e4 A2', 'd4 fgfedc B6 (gf)(gf)(ed) c4 B2 AB'  
X:1
L:1/8
M:4/4
K:D
 (fa)(de)(cd) | e3 f g2 | (fa)(de)(cd) | e4 A2 | Bg-(gf)(ed) | (ca)a(gf)e | f2 d2 c2 | d4 :: 
 fgfedc | B6 | (gf)(gf)(ed) | c4 B2 | AB _c2 B2 | _c4 B2 | A_ffedc | BA ^G3 A | A6 | (fa)(de)(cd) | 
 e3 fga | (fa)(de)(cd) |"^e" f4 A2 | Bggfed | (ca)(ag)(fe) | f2 d2 c2 | d4 :|  