Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:6/8
K:G
['B ded', 'd2 B']  
X:1
L:1/8
M:6/8
K:G
|: B3 BAB | dBA G2 B | ded d2 B | ded B2 A | ABB BAB | dBA G2 B | ded cBA |1 GBd g z A :|2 
 G3 GBd || g3 fgf | ege d2 B | ded d2 B | ded B2 d | g3 fgf | ege d2 B | dge dBA | G3 GBd | g3 f3 | 
 ege d2 B | ded d2 B | ded B2 d | g3 f3 | ege d2 B | dge dge | dge dBA ||  