Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Bb
['(B2 d) F3 Bdg f3', 'B2) g2 b d3 aba g3 fde', 'B3 Bcd e2 f']  
X:1
L:1/8
M:6/8
K:Bb
 F | (B2 d) F3 | Bdg f3 | fbd g2 f | c3 (e2 d) | (B2 d) F3 | Bdg f3 | bBd fFd | (c3 B2) || 
 !fermata!d | g2 b d3 | aba g3 | fde cdB | cAB G2 A | (B2 d) F3 | Bdg f3 | bBd fFd | 
 (c3 B2)!D.C.! || F | B3 Bcd | e2 f g3 | _a3 agf | b2 g e2 B | B3 Bcd | e2 f g2 _a | b2 B Bcd | 
 [Ee][Gg][Ge] G2!D.C.! ||  