Develop musical pieces adhering to the provided chord changes.
'D', 'Em', 'G', 'D', 'G', 'D', 'G', 'Em', 'G', 'D', 'Em', 'G'  
X:1
L:1/8
M:4/4
K:D
 A |"D" D>D D>E F>E D>F |"Em" E>D E>F"G" B>A B>c |"D" d>e dB AF DF |"G" G>E F>D B,>B, B, | d | 
"D" A>B d>e"G" f>e df |"Em" e>d ef e>d"G" B>d |"D" A>B d>e f>e d>f |"Em" e>d"G" g>f e>e d ||  