Develop a harmonious melody by following the provided chord scheme.
'D', 'G', 'D', 'A7', 'D', 'G', 'D', 'Em', 'G', 'D', 'Em', 'A7', 'G', 'D', 'Em', 'D', 'A7', 'D'  
X:1
L:1/8
M:2/2
K:D
 (dB) |"D" AFAB AB d2 | (fd)fd"G" e(dBd) |"D" AFAB ABde |"A7" (fa)ef"D" d2 :| ef | 
"G"{f} g2 ge"D" f2 fd |"Em" edef ed B2 |"G" g2 ge"D" f2 fd |"Em" edef"A7" a2 a2 | 
"G" g2 ge"D" f2 fd |"Em" edef e(dBd) |"D" AFAB (AB)de |"A7" (fa)ef"D" d2 |]  