Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/16
M:3/4
K:G
['g2dc [dB]2A2G2B2 A2GF G2D2B,2G,2 (Bdc)B (AcB)A G2B2', 'D4 d2AG F2E2D2F2 E2D^C D2F2A2c2 B2AG B2d2e2g2']  
X:1
L:1/16
M:3/4
K:G
 g2dc [dB]2A2G2B2 | A2GF G2D2B,2G,2 | (Bdc)B (AcB)A G2B2 | (gbag) (fag)f e2g2 | f2ed f2a2d'2g2 | 
 fed^c d4 D4 :: d2AG F2E2D2F2 | E2D^C D2F2A2c2 | B2AG B2d2e2g2 | fgaf d4 d4 | d2fa d2cB c4 | 
 c2fa c2BA B4 | B2c2 d2ef g2c2 | BAGF G4 G,4 :|  