Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:4/4
K:G
['B3 d g>a g>e d>e d<B g>a']  
X:1
L:1/8
M:4/4
K:G
"D7" D |"G" G>B d>B"C" e2 e>g |"G" d/c/B/A/ G>B"D" A2 A>B |"G" G>B d>B"Em" e2 e>f | 
"C" g>a g>e"Bm" B3 :|"D7" d |"G" g>a g>e d>e d<B |"G" g>a g>e"D" a>g a<b |"G" g>a g>e"Em" d>e g<b | 
"C" a>f g>e"Bm" B3 |]"D7" d |"G" g>a g>e d>e d<B |"G" g>a g>e"D" a>g a<b | 
"G" g<b"C" e<g"G" d>e g<b |"D" a>f"Em" g>e"Bm" B3 |]  