Develop musical pieces adhering to the provided chord changes.
'A', 'G', 'E', 'A', 'G', 'A', 'Am', 'G', 'Am', 'G', 'Am', 'G', 'Am'  
X:1
L:1/8
M:4/4
K:D
 [ca]4 [Bg]4 |"A" efed c2 cd | e2 f2"G" gaba |"E" g2 e2 e2 fg |"^no chord" [ca]4 [Bg]4 | 
"A" efed cdef |"G" g2 d2 efed |"A" c2 A2 A4 ::[K:G]"Am" ABcA"G" BAGB |"Am" ABAG EDEG | 
 A2 AB c2 d2 | e3 f edcB | ABcA"G" BAGB |"Am" ABAG EGAB | cBAc"G" BA G2 |"Am" A4 A4 :|  