Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:6/8
K:C
['G c3 cde c3 cBc def edc', 'c2 c e2 g']  
X:1
L:1/8
M:6/8
K:C
 G |:"C" c3 cde |"Am" c3 cBc |"Dm" def edc |"G7" B3 d3 |"C" g3 gfg |"F" a2 f"G7" def | 
"C" ged"Am" cde |"F" fdc"G7" BAG ::"C" c2 c e2 g |"F" a2 f"G7" def |"C" g2 e"Am" cBc | 
"Dm" d2 B"G7" G2 G |"C" c2 c e2 g |"G7" g2 f def |"C" gec"G7" ded |"C" c3 c z2 :|  