Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
Q:3/8=120
M:6/8
K:F
['F2 c cAF', 'F3 cdc cAF FAc fed cBA GAF']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:F
"^A" F2 c cAF | E2 G GEC | F2 c cAF | FAc f3 | F2 c cAF | E2 G GEC | DEF GEC | DEF F3 :: 
"^B" cdc cAF | FAc fed | cBA GAF | EFG ECc | AFd BGf | ece f2 B | AGF CFE | F3- F3 :|  