Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
Q:1/4=120
M:6/8
K:A
['(c/d/) e>AB GFE Tc>Bc |1 dcd ede', '', '']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:A
"^Gaily""^A" | (c/d/) | e>AB GFE | Tc>Bc |1 dcd | ede cAF | =G3- G3 :|2 eag | fde cAB | 
 A3"^fine" A2 |]"^B" |] (A/B/) | c(cd) e(ef) |{a} =gec d2 (c/d/) | eAB{d} cAF | =G3-"^->A2" G3 |]  