Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:2/2
K:A
['d>ef>g (3agf (3efg a>ec>A B>AF z', 'dzb z Bzzc d>ef>g'  
X:1
L:1/8
M:2/2
K:A
 (uAB) | (3cBA (3cBA vF>A"_SEGUE"E>c | d>ef>g (3agf (3efg | a>ec>A B>AF z |"^4""_0" uA8 | 
 (3vcBA (3cBA F>AE>c | d>ef>g (3agf (3efg | a>ec>A B>AF z |"^4""_0" vA6 :: (ucB) | vA z a2 czze | 
 dzb z Bzzc | d>ef>g (3agf (3efg | a>ec>A B>AF z | vAza z czzc | dzb z Bzzc | d>ef>g aze>d | 
 (3cBA G>B A2 :|  