Compose a musical piece based on the specified chord sequence.
'D7', 'G', 'D7', 'G', 'D7', 'G', 'D', 'G', 'Em', 'C', 'D7', 'G', 'G', 'A7', 'D', 'D7', 'G', 'D7', 'G', 'D7', 'G'  
X:1
L:1/4
M:4/4
K:G
|:"D7" D |"G" G G"D7" A A |"G" B B d3/2 c/ | B c/B/"D7" A B/A/ |"G" G2 z :| G | 
"D" d"G" d"Em" e"C" e |"D7" A (3A/B/c/"G" B B/c/ |"G" d d"A7" e e |"D" A2 z ||"D7" D | 
"G" G G"D7" A A |"G" B B d3/2 c/ | B c/B/"D7" A B/A/ |"G" G2 z |]  