Create a melodious tune based on the given chord progression.
'D', 'G', 'A', 'D', 'G', 'A', 'D', 'D', 'G', 'A', 'D', 'G', 'A', 'D'  
X:1
L:1/8
M:2/4
K:D
|:"D" AD FA |"G" BG G/F/G |"A" cc E/F/G/A/ |"D" BB A2 | AD FA |"G" BG G/F/G |"A" cc A/A/B/c/ | 
"D" dd d2 ::"D" Af f/e/f |"G" gg B2 |"A" Ag g/f/g |"D" aa f2 | Af f/e/f |"G" gg B2 |"A" Ac c/B/c | 
"D" ed d2 :|  