Compose a piece of music following the specified structure and theme.
X:1
L:1/8
Q:1/8=350
M:4/4
K:D
['dcdA BdAF', 'fddc dfaf'  
X:1
L:1/8
Q:1/8=350
M:4/4
K:D
 A | dcdA BdAF | E2 eg fdec | dcdA BdAF | GBAG FD D2 | dcdA BdAF | E2 eg fdec | defd cdec | 
 dBAG FD D2 || fddc dfaf | gfga bgeg | fddc dfaf | gbeg fdde | fddc dfaf | gfga bgef | gagf gbaf | 
 (3gag fg egfe ||  