Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:2/4
K:Bb
['d FE/F/ Fd Bcfg gfdB agc c/d/', 'fd/f/ ba gfdf', 'Bcdf Bcdf']  
X:1
L:1/8
M:2/4
K:Bb
 d | FE/F/ Fd | Bcfg | gfdB | agc c/d/ | eA/B/ cG/F/ | EFGd | ff/e/ fe/c/ | BBB :| fd/f/ ba | 
 gfdf | fe/d/ eg | gcc d/e/ | fd/f/ ba | gfdf | df e/f/g | bgfd | FE/F/ Fd | Bcfg | gfdB | 
 agc c/d/ | eA/B/ cG/F/ | EFBd | ff/e/ fe/c/ | BBB || Bcdf | Bcdf | bfed | geeF | Bcdf | Bcdf | 
 gfed | cBcd | FE/F/ Fd | Bcfg | agc c/d/ | eA/B/ cG/F/ | EFBd | ff/e/ fe/c/ | BBB ||  