Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:4/4
K:D
['(AG) Addc', '(Bd) cAAF GFGA']  
X:1
L:1/8
M:4/4
K:D
 (AG) | Addc ABAG | Addc TB2 (AG) | Addc ABAF | GFGA TB2 (AG) | Addc ABAG | Addc TB2 (AG) | 
 Addc ABAF | GFGA TB2 || | (Bd) | cAAF GFGA | FDDG TB2 (Bd) | cAAF GFGA | FDEC D2 (Bd) | 
 cAAF GFGA | FDDG TB2 (Bd) | cAAF GFGA | FDEC D2 |]  