Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/16
M:2/4
K:Eb
['FGE2 F4']  
X:1
L:1/16
M:2/4
K:Eb
 B2B2c2BG | c2BG F4 | c2GBGFB,C | FGE2 F4 | F2FGE2C2 | F2FG F4 | E2DCB,2B,C | FGE2F2C2 | B2GBGFEC | 
 F2FG B4 | G2GFC2CE | FGE2 F4 | F4 GFEC | B2>G2 F4 | FGFEC2B,C | F2>E2 F4 | f2f2fdcf | cBAG F4 | 
 F2E2C2B,C | FGE2 F4 | B2GBcBAB | cBAG F4 | FGFEC2B,C | FGE2 F4 | f2fcBcfc | B2AGF2B2 | F2E2F2B,C | 
 FGE2 F4 | F4 GFEC | B2>G2 F4 | c2>G2B2EC | F2>E2 F4 |]  