Produce a tune that adheres to the mentioned chord progression.
'D', 'Em', 'A7', 'D', 'G', 'Em', 'A', 'D', 'D', 'Em', 'A7', 'D', 'Em', 'A7', 'D'  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
"D" fedB A2 F2 |"Em" GFGA B4 |"A7" gfed cA (3Bce | e2 A2 A4 |"D" fedB A2 F2 |"G" GFGA B4 | 
"Em" gfed"A" cA (3Bce |"D" e2 d2 d4 ::"D" A2 A2 d3 c |"Em" B2 B2 e4 |"A7" gfed cA (3Bce | 
 e2 A2 A4 |"D" A2 A2 d3 c |"Em" B2 B2 e4 |"A7" gfed cA (3Bce |"D" e2 d2 d4 :|  