Produce musical creations that correspond to the presented chord variations.
'A', 'D', 'B', 'A7', 'D', 'A7', 'D', 'C', 'D', 'B7', 'Em', 'Em', 'D'  
X:1
L:1/8
M:4/4
K:Dmix
"A" |:"D" ([GE][AF]-) [AF]4 ([GE][FD]) | ([GE][FD]) [FD]2 [FD][DA,] [FD][GE] | 
 ([GE][AF]-) [AF]4 ([GE][FD]) | ([GE][FD]) [FD][FD]- [FD]2 [FD]2 :|"B" |: 
"^tacet" (DC) (B,A,) (B,C) D2 |"A7" z [GE]2 [FD]"D" [AF]2 [AF]2 |"^tacet" (DC) (B,A,) (B,C) D2 | 
"A7" z [GE]2 [FD]"D" [FD]2 [FD]2 :|"C" |:"D" D4"B7" ^D4 |"Em" E2 z2 z4 || 
"Em" [AF][GE] [GE][GE] [AF]2 [GE]2 | [GE]2 [AF][BG] [AF]2 [GE]2 | [AF][GE] [GE][GE] [AF]2 [GE]2 | 
 [GE]2 [AF][BG] [AF]2 [GE]2 ||"D" [GE][FD] [FD][FD] [GE]2 [FD]2 | [FD]2 [GE][AF] [GE]2 [FD]2 | 
 D2 z2 D2 z2 :|2 D2 z2 D2 z2 |]  