Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
Q:1/8=232
M:4/4
K:F
['Bd cB', 'ge ce ge']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:F
 fe | fc Ac Bd cB | AF AF Bd cB | AF FA BG GB | AF AF G2 e2 | fc Ac Bd cB | AF AF Bd cB | 
 AB cd eb ge | f2 fe f2 :: ef | ge ce ge bg | af cf af af | ge ce ge ba | gf ed c2 (3(ABc) | 
 dB FB dB fd | cA FA cf ec | de fd cB AG | F2 f2 f2 :|  