Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
Q:3/8=112
M:6/8
K:Ador
['ABA a3 gef g3', 'A3 cdc efe d2 d (ded) (cdc)']  
X:1
L:1/8
Q:3/8=112
M:6/8
K:Ador
 ABA a3 | gef g3 | cdc edc | B2 g dBG | ABA a3 | gef g3 | e3 deg | edB A3 :| cdc efe | d2 d (ded) | 
 (cdc) (edc) | B2 g dBG | cdc edc | deg a2 g | e3 deg | edB A3 :|  