Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/16
Q:1/4=120
M:2/4
K:G
['B2>G2 A2G z', 'AGFG A4 A2dc BAB2 AGFG']  
X:1
L:1/16
Q:1/4=120
M:2/4
K:G
 B2>G2 A2G z | B2AB GFGA | B2>G2 A2G z | FGA2 A4 :| A2d2 A2B2 | AGFG A4 | A2dc BAB2 | AGFG A4 | 
 A2dc BAB2 | AGFG A2Bc | decd BcAB | AGFG A2 |]  