Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/16
M:3/4
K:G
['GABc d2dB d2dB dBdB dBde d2dB cAcA', 'D2DG E2EG F2FA', 'GDGD ADAD']  
X:1
L:1/16
M:3/4
K:G
 GABc d2dB d2dB | dBdB dBde d2dB | cAcA cAce c2cA | BGBG BGBd B2BA | GABc d2Ac BAGF | 
 GFGB AGFE D4 :: D2DG E2EG F2FA | G2GB E2EG F2D2 | D2^CD E2E2 D4 | B,2B,2 CB,A,C B,4 | 
 D2DG E2EG F2FA | GFGB A2G2 G4 :: GDGD ADAD BDBD | GDGD ADAD B2>D2 | GDGD ADAD BDBD | 
 GDGD ADAD B4 | D2DG E2EG F2FA | GFGB A2G2 G4 :|  