Design a piece of music by fusing the provided alphabetic indicator and the predetermined tune.
X:1
L:1/8
M:4/4
K:D
['d2 fd', 'g2 dB']  
X:1
L:1/8
M:4/4
K:D
 d2 fd g2 fe | d2 fd e2 cA | d2 fd g2 fe | fgaf e2 cA :| g2 dB B2 dB | g2 dB e2 cA | g2 dB B2 dB | 
 A2 af e2 cA :|  