Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:6/8
K:G
['BAB d3', 'ded ded AGA']  
X:1
L:1/8
M:6/8
K:G
|: BAB d3 | GAG BGD | E3 EcB | AGA Bcd | BAB d3 | GFG BGD | EcB AGA | BGF G2 d :: ded ded | 
 AGA BGD | ded ded | AGA Bcd | ded def | gdB AGA | BGD EcB |1 AGF G2 d :|2 AGF G3 ||  