Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:6/8
K:G
['D GAG BAG Bcd efg dBG', 'g2 e']  
X:1
L:1/8
M:6/8
K:G
 D | GAG BAG | Bcd efg | dBG GAB |"^tr" E3 E2 D | GAG BAG | Bcd efg | dBG AGA | G3 G2 :: B/c/ | 
 dBd dBd | g2 e g2 e | dBG GAB | E3 E2 D | GAG BAG | Bcd efg |1 dBG AGA | G3 G2 :|2 baf agf | 
 g3 g2 ||  