Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:3/4
K:F
['(cB) (Ac)(de)(fg) a2 (gf)(ed) c2 B2', '(BG)(dG)(gG) (cG)(eG)(gG)', '(Ac)(de)(fg) a2 (gf)(ed) c2 B2', 'E2 (GB) d2']  
X:1
L:1/8
M:3/4
K:F
 (cB) | (Ac)(de)(fg) | a2 (gf)(ed) | c2 B2 (GB) | d2 c2 (cB) | (Ac)(de)(fg) | a2 (gf)(ed) | 
 c2 B2 (GA) | F4 ::[K:C] dc | (BG)(dG)(gG) | (cG)(eG)(gG) | agfGBd | (fe) c2 (dc) | (BG)(dG)(gG) | 
 (cG)(eG)(gG) | (ag)(fG)(Bd) | c4 :|[K:F] cB | (Ac)(de)(fg) | a2 (gf)(ed) | c2 B2 (Bd) | 
 d2 c2 (cB) | (Ac)(de)(fg) | a2 (gf)(ed) | c2 B2 (GA) | F4 :: f2 | f4 e2 | (dc)(BA)(GF) | 
 E2 (GB) d2 | E2 (GB) d2 | e4 d2 | (cB)(AG)(FD) | C2 (FA) c2 | C2 FA c2 | a4 g2 | (fe)(dc)(BA) | 
 G2 Bd g2 | B2 (dg) b2 | d'4 c'2 | (ba)(gf)(ed) | c2 a2 g2 | f4 :|  