Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:3/4
K:F
['A>BcAGF EGGABG', 'CFFGAF Acde f2 gGGABG Acdf Ted/e/']  
X:1
L:1/8
M:3/4
K:F
 A>BcAGF | EGGABG | A>BcAGF | CFFGAF :: Acde f2 | gGGABG | Acdf Ted/e/ | fFFGAF :|  