Produce a musical composition based on the provided chord structure.
'Em', 'D', 'Em', 'D', 'Em', 'D', 'Em', 'D', 'Em', 'D', 'Em', 'D', 'Em', 'D', 'Em', 'D', 'Em'  
X:1
L:1/4
Q:1/4=120
M:2/4
K:Emin
"Em" z E/F/ |: G E |"D" F"Em" E/F/ | G E |1"D" F"Em" E/F/ :|2"D" F z |:"Em" E"D" F |"Em" B B/A/ | 
 G/F/ G |"D" F"Em" E ::"D" z"Em" G | F/E/"D" F | F/A/"Em" G |"D" F"Em" E :|  