Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/4
K:C
['Gc c/B/c dG G/^F/G', 'z Bdgb ba/^g/ a=g g^f/c/ fe eddG', 'bGba agge']  
X:1
L:1/8
M:2/4
K:C
 Gc c/B/c | dG G/^F/G | dGfG | ag g/f/e | Gc c/B/c | dG G/^F/G | dGfB | dcc z :: Bdgb | 
 ba/^g/ a=g | g^f/c/ fe | eddG | Bdgb | ba/e/(ag) | (g/^f/) (^c/d/) (e/d/) (f/d/) | 
 (^f/g/) (b/a/) g2 ::"^Trio" bGba | agge gGfB | dccg | bGba | agge | gfBg | ce/d/ c2 :|  