Design a piece of music by fusing the provided alphabetic indicator and the predetermined tune.
X:1
L:1/16
Q:1/8=120
M:2/4
K:G
['d2ed B2ec dBGA', '', 'f2f2 e2e2', 'b4 d2d2 A2A2 B4']  
X:1
L:1/16
Q:1/8=120
M:2/4
K:G
"^A" Bc | d2ed B2ec | dBGA B2>c2 | dgfe dcBA | GFGA B2Bc | d2ed B2ec | dBGA B2c2 | dgfe dcBA | 
 GABd g2 ||"^final" GABd G4 |]"^B" Bd | e2e2 f2f2 | e2e2 B2>d2 | e2>f2 gfga | b2bb bagf | 
 e2e2 f2f2 | e2e2 B2ga | bagf agfe | dgfe d2 ||"^C" c2 | B2d2 B2d2 | gfga b4 | d2d2 A2A2 | 
 B4 G2dc | B2d2 B2d2 | gfga b4 | d2d2 A2A2 | B4 G2>d2 | e4 e2d2 | e4 e2d2 | c2cB c2e2 | 
 dcBA G2>c2 | e4 e2f2 | g2g2 f2e2 | defg agfg | e4"_DS" e2 ||  