Write musical pieces that adapt to the predetermined chord shifts.
'G', 'D7', 'G', 'G', 'D7', 'G', 'D7', 'G', 'D7', 'G', 'C', 'D7', 'B7', 'Em', 'Am', 'B7', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'Em', 'Am', 'B7', 'Em'  
X:1
L:1/8
M:2/4
K:G
|: DGB |"G" [dB] z"D7" [cA] z |"G" [BG][AF]"^(D)" [BG]{d}[cF] |"G" [BG]3"D7" [FA] | 
"G" [BG][AF] G2 |"D7" G [FA]2 G | [dF] z (3[cF]Bc |"G" [BG]4- | [BG][BG]"D7" [cA][=c^A] | 
"G" [dB]3 [e=c] |"C" [=fd][ec] [dB]c |"D7" BA dc |"B7" BA"Em" G2 |"Am" G{B}A-"^(Em)" AG | 
"B7" (3BAG (3GFE |"Em" E4- | E :: efg |"Am" (3aba"Em" (3gfg |"Am" (3aba"Em" (3gfg | 
"Am" (3aba"Em" g2- | ge fg |"Am" (3aba"Em" (3gfg |"Am" (3aba"Em" (3gfg |{^a} [bg][^ag] [bg]2- | 
 [bg]e fg |"Am" (3aba"Em" (3gfg |"Am" (3aba"Em" (3gfg |"Am" (3aba"Em" g2- | ge fg | 
"Am" [ae]3 [^ae] |"B7" (3[b^d]ag (3gfe |"Em" e4- | e :|  