Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Gmin
['gaba{a} g2 fd', '(B/c/d) BG (Bd)gB']  
X:1
L:1/8
M:4/4
K:Gmin
 d | gaba{a} g2 fd | (cd)fg agfa | gaba{a} g2 fd | (cd)fA G/G/G G :| c | (B/c/d) BG (Bd)gB | 
 (A/B/c) AF (Ac)fA | (B/c/d) BG (Bd)gB | AG^FA G/G/G (Gc) | (B/c/d) BG (Bd)gB | (A/B/c) AF (Ac)fA | 
 Bcd=e fgfd | cfcA G/G/G G ||  