Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:2/4
K:C
["g>^f g/c'/e fB({/c} B/A/B) f>e", 'dd/d/ bd']  
X:1
L:1/8
M:2/4
K:C
"C" g>^f g/c'/e |"G7" fB({/c} B/A/B) | f>e f/b/d |"C" ac({/d} c/B/c) | g>^f g/c'/e | 
"G7" fB({/c} B/A/B) | f>e f/a/B |"C" ce c z ::"C" c/d/e eg |"F" f/g/a"C" !>!g2 |"G7" d/e/f !>!f2 | 
"C" c/d/e !>!e2 | c/d/e eg |"F" f/g/a"C" !>!g2 |"G7" Gf f/e/d |"C" cc c z ::[K:G]"G" dd/d/ bd | 
"C" e>c'"G" bd | dd/d/ bd |"D7" c>a gB |"G" dd/d/ bd |"C" e>c'"G" bd |"D7" .d'd'/d'/ c'/b/a | 
"G" gg g z :|  