Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:2/4
K:G
['Pe>d d>d', 'a/g/f/e/ dd ef g>e fa g2']  
X:1
L:1/8
M:2/4
K:G
"G" b>a ge | Pe>d d>d | b>a ge | Pe>d d>d |"D7" c'b ag | Pe>d d>d | fa df |"G" g2 z2 :: 
[K:D]"A7" Ag fe |"D" dA{/c} BA |"A7" eA{/c} BA |"D" fc ed |"A7" Ag fe |"D" dc"E7" d^G | 
"D/A" Fd"A7" ce |"D" d2 z2 ::[K:D]"D7" dd ef |"G"{/a} gf g2 |"D7" a^g a^a |"G" b2 a/g/f/e/ | 
"D7" dd ef |{/a}"G" gf"C" g>e |"G" dg"D7" fa |"G" g2 z2 :|  