Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:2/2
K:Bb
['de fdfd B2 cd cAcA F2 ED', 'B2 B2', '(GF) E3 F G2 G', '(cd) e3 d e2 |{ef} g4 ed'  
X:1
L:1/8
M:2/2
K:Bb
 de | fdfd B2 cd | cAcA F2 ED | EFGA Bcde | cAFA c2 de | fdfd B2 cd | cAcA F2 ED | E2 g2 fdec | 
 B2 B2 B2 :: Bc | dBcA G2 ef | g2 c2 c2 AB | cABG F2 de | f2 B2 B2 F2 | GABG FDFD | GABG FDFD | 
 E2 g2 fdec | B2 B2 B2 :|[M:3/4][K:C] (GF) | E3 F G2 | G e3 d2 | c2 A2 A2 | A4 (GF) | E3 F G2 | 
 G c3 d2 | e2 c2 c2 | c4 |] (cd) | e3 d e2 |{ef} g4 ed | c2 A2 B2 | d4 cd | e3 f e2 | d2 c2 d2 | 
 e3 c A2 |"^D.C." A4 |]  