Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
['D3 F A3 B', 'F D3']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
 D | D3 F A3 B | (AF) (dF) E3 F | D3 F A3 B | d3 e f !fermata!d Ad | (dc) (cB) B3 A | AFAB d3 B | 
 A<F (ED) E3 F | D3 E FD z :: F | D3 F A3 B | (AF) (dF) E3 F | D3 F A3 B | d3 e (fe) d (e/f/) | 
 (fd) (ec) d3 B | AF (AB) !fermata!d2 z B | A<F E<D E3 F | D3 E FD z :|  