Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Dmin
['E2 E CDE', 'B, DEF']  
X:1
L:1/8
M:6/8
K:Dmin
 ABG AFG | EFD ECD | A,2 A, DEF | E2 E CDE | F3 FGF | E2 E CDE | F2 E2 C2 | A,=B,^C D3 :| 
 B,2 B, DEF | B,2 B, DEF | A,2 A, DEF | A,2 A, DEF | B,2 B, DEF | B,2 B, DEF | ABG AFG | EFD EDC | 
 B,2 B, DEF | B,2 B, DEF | A,2 A, DEF | A,2 A, DEF | B,2 B, DEF | B,2 B, DEF | =B,2 B, DEF | 
 =B,2 B, DEF | B2 A2 GF | E3 EFG | A2 G2 FE | D3 DEF | G2 F2 ED | ^C3 CDE | F2 G2 ^G2 | A3 AGA | 
 B2 c2 B2 | E3 EFG | A2 B2 A2 | D3 DEF | G2 F2 ED | ^C3 CDE | F2 E2 C2 | A,=B,^C D3 ||  