Compose a melodious orchestration that adheres to the designated chord structure.
'B', 'Em', 'Am', 'B7', 'Em', 'Em', 'Am', 'Em', 'Am', 'B7', 'Em', 'C', 'D7', 'G', 'G', 'G', 'G', 'G', 'C', 'G', 'Am', 'B7', 'Em', 'Em', 'D', 'Em', 'Em', 'Em', 'Em', 'B7', 'Em'  
X:1
L:1/8
M:4/4
K:Emin
"B" |:"Em" E e2 B/d/"Am" cB A2 |"B7" G A2 B"Em" GF E2 |1"Em" E e2 B/d/"Am" c/d/c/B/ A/^G/A/c/ | 
"Em" B2 e2 g2 e2 :|2"Am" G A2 G"B7" B/A/G G/F/E/^D/ |"Em" E4 z2 |]"C" |:"D7" D2 | 
"G" d2 cB B/^A/B/d/ G2 |"G" d2 cB B/^A/B/d/ G2 |"G" BB AG BB AG |"G" G/F/G B/^A/B d/^c/d g2 | 
"G" z g fe dc B2 |"C" z e dc"G" BA G2 |"Am" G A2 G"B7" B/A/G G/F/E/^D/ |1"Em" E4 z2 :|2 
"Em" E4 z B,EG |]"D" |: ::"Em" B2 ^AG AB AG |"Em" ^AB AG B/A/G G/F/E |1,3"Em" z B ^AG AB ^cd | 
 ^c B6 z :|2,4"Em" z G FE"B7" ^DB, DF |"Em" E6 z2 :|  