Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
Q:1/2=80
M:2/2
K:Emix
['B e3 g fagb fa g(f/e/) ^df', 'fgab agfe ^df']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:Emix
 B | e3 g fagb | fa g(f/e/) ^df BA | G2 F2 EB, EG | (Be) (gf) e3 :: f | f3 b fgab | agfe ^df B2 | 
 e3 f gbag |"^NB" fe (ga/)(g/a/) b2 B2 | f3 g fgab | agfe ^df BA | G2 F2 EB, EG | (Be) g>f e3 :|  