Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
Q:1/8=320
M:6/8
K:G
['G>AG AGA B3', 'z B d>ed def g3 B2 e'  
X:1
L:1/8
Q:1/8=320
M:6/8
K:G
 D/E/ | G>AG AGA | B3 g2 e | d>ed dBG | E3 D2 E | G>AG AGA | B3 g3 | fag fed | e4 z :| B | 
 d>ed def | g3 B2 e | d>ed dBG | E3 D2 E | G>AG AGA | B3 g2 e | dBG AGA | G3- G2 :|  