Design a melodically engaging tune in accordance with the suggested chord progression.
'D', 'D', 'D', 'Bm', 'Em', 'A7', 'D', 'D', 'G', 'A7', 'D', 'D', 'D', 'D', 'Bm', 'Em', 'A7', 'D', 'D', 'G', 'A7', 'D'  
X:1
L:1/8
M:4/4
K:D
"^A" A2 |"D" d2 dA BAFA |"D" ABdA BAFA |"D" ABde"Bm" f2 ed |"Em" Beed F"A7"egfe |"D" dcdA FBAFA | 
"D" ABdA BAFA |"G" ABde"A7" fgec |"D" dBAF D2 :|"^B" fg |"D" a2 ag f2 fe |"D" d2 dA BAFA | 
"D" ABde"Bm" f2 ed |"Em" Beed F"A7"egfe |"D" abag fgfe |"D" dcdA FBAFA |"G" ABde"A7" fgec | 
"D" dBAF D2 :|  