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:Dmix
['B2 B BcA BGE G2']  
X:1
L:1/8
M:6/8
K:Dmix
 B2 B BcA | BGE G2 D | GAG G (3Bcd | ecA ABc | B2 B BcA | BGE G2 A | Bcd ecA | AGE D3 | B2 B BcA | 
 BGE G2 D | GAG G (3Bcd | ecA ABc | B2 B BcA | BGE G2 A | Bcd ecA | AGE D (3EFG | A2 A ABA | 
 GED D2 D | EDE c2 A | B (3GGG EFG | A2 A ABA | GED D2 A | Bcd ecA | AGE D (3EFG | A2 A ABA | 
 GED D2 D | EDE c2 A | B (3GGG EFG | A2 A ABA | GED D2 A | Bcd ecA | AGE D3 |]  