Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['d2 cA GEEE', 'ef g2'  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
"^D modal" d2 cA GEEE | ABAG A4 | d2 cA GEEE | A2 GE D4 | d2 cA GEEE | ABAG A2 Bd | d2 cA GEEE | 
 A2 GE D4 || c2 cd ef g2 | eaag efge | c2 cd ef g2 | abge d4 | c2 cd ef g2 | eaag ef g2 | 
 fged cAGc | Addd dfed ||  