Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
M:4/4
K:E
['D G2 GA GFED G>ABG AG!fermata!ED G3']  
X:1
L:1/8
M:4/4
K:E
 D | G2 GA GFED | G>ABG AG!fermata!ED | G3 A GFED | G2 AB A2 z D | GABd e2 e e | 
 ABAG FA !fermata!d2 | G3 F/E/ B3 G | AG ED E3 |]  