Design a melodic composition using the outlined structure while keeping within the customary elements of the given genre.
Only One Section  
X:1
L:1/8
M:4/4
K:Bb
 BB Bc d2 d2 | Bc BG F2 DD | F2 F2 (GF)(DC) | D2 (GF) G3 G | d3 d c2 d2 | (Bc)(BG) F2 DD | 
 F2 F2 (GF)(DC) | D2 (GF) G4 | GG GA B2 (Bc) | d2 (de) f2 d2 | BB B2 c3 B | c2 (Bc) d3 d | 
 dd d2 c2 d2 | Bc(BG)(GF) DD | F2 F2 (GF)(DC) | D2 (GF) G4 |]  