Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
Q:1/8=180
M:2/2
K:G
['FG AcBG', 'AB cBAg fde^c'  
X:1
L:1/8
Q:1/8=180
M:2/2
K:G
"^D modal" FG | AcBG AGFG | Addc d2 FG | AcBG AGFD | AGGF G2 FG | AcBG AGFA | d2 ef g2 fg | 
 (3agf ge dfec | dcAF G2 || AB | cBAg fde^c | dcAB c2 AB | cBAg fde^c | dcAF G2 AB | cBAg fde^c | 
 d2 ef g2 fg | (3agf ge dfec | dcAF G2 |]  