Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/4
M:4/4
K:D
['A3/2 G/ F G', 'f f g f']  
X:1
L:1/4
M:4/4
K:D
 A3/2 G/ F G | A/B/ =c/A/ B G | A3/2 G/ F G | A d d2 | A3/2 G/ F G | A/B/ =c/A/ B G | A d c e | 
 d2 d2 :| f f g f | d/e/d/B/ A2 | f f g f | d3/2 B/ A2 | f f g f | d/e/d/B/ A B | =c B c G |1 
 A A/B/ =c d :|2 A4 |]  