Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:3/8
K:G
['DEF G/B/Bd cAF/F/']  
X:1
L:1/8
M:3/8
K:G
 D | DEF | G/B/Bd | cAF/F/ | GzD | DEF | G/B/Bd | cAF/F/ | GzG/G/ | Ged | dcc | A/A/dc | cBB | 
 GFE | D>cc | DEF | G2 |]  