Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/4
Q:1/2=80
M:2/2
K:D
['F A']  
X:1
L:1/4
Q:1/2=80
M:2/2
K:D
 d/c/ |"D" d D F A |"G" B/A/B/c/"A" d e |"D" f/g/ a"G" B/c/ d |"Em" e3/2 f/"A" e c |"D" d D F A | 
"G" B/c/ d"A" c a/g/ |"D" f d"A" e c |"D" d2- d :: f/g/ |"D" a f- f a |"Bm" f d- d e/f/ | 
"Em" g/f/e/d/ c d |"A" e3 f/g/ |"D" a f d f |"Bm" A d F A |"D" d3/2 e/"A7" e3/2 d/ |"D" d3 :|  