Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/4
Q:1/4=120
M:4/4
K:G
['G G']  
X:1
L:1/4
Q:1/4=120
M:4/4
K:G
 E c B3/2 A/ | G G F F | F F B B | ^c ^A B2 | B ^d e =d | (d/c/) (B/c/) B A | d (B/G/) E c | 
 (B/A/) (G/A/) G2 |"^Chorus" G G A G | G G A G | c c B B | d d d2 | e e e d | c c c B | 
 (e ^d/e/ f) e | (e d) (c B) | (c d/c/ B) A | G4 |]  