Craft a musical composition following the provided chord structure.
'Em', 'Em', 'D', 'D', 'Em', 'Em', 'D', 'D', 'Em', 'Em', 'Em', 'D', 'D', 'Em', 'Em', 'D', 'D', 'Em'  
X:1
L:1/8
M:4/4
K:Edor
 ED |"Em" EBBA B2 EB |"Em" B2 AB dBAG |"D" F/E/D AD BDAD |"D" F/E/D AD BAGF |"Em" EBBA B2 EB | 
"Em" B2 AB defg |"D" afec dBAF |"D" DEFD"Em" E3 :: gf |"Em" eB B2 eBgf |"Em" eB B2 gedB | 
"D" A/A/A FA DAFA |"D" A/A/A FA defg |"Em" eB B2 eBgf |"Em" eB B2 defg |"D" afec dBAF | 
"D" DEFD"Em" E2 :|  