Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:6/8
K:G
['G2 d d>ed B2 c3 Bcd efg', 'c3 dcB gfe d3 f3 g>ag f>ed']  
X:1
L:1/8
M:6/8
K:G
 G2 d d>ed | B2 c3 | Bcd efg | aga f>ef | gee dcB | c2 d e2 a | f3/2e/4f/4g A2 B |1 A3 G3 :|2 
 A3 G2 F/G/ |: A>BA F2 G | A2 B c3 | dcB gfe | d3 f3 | g>ag f>ed | A2 c2 a | f3/2a/4f/4g A2 B |1 
 A4 G2 F/G/ :|2 A3 G3 ||  