Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:2/2
K:D
['a3 f g3 e']  
X:1
L:1/8
M:2/2
K:D
"_Slow" A2 | A2 F>G A2 A2 | AB d4 (f/e/)d | B3 d (Af)(ed) | Td2 c2 z2 d>e | f3 d{d} e3 c | 
 d2 Tc>B c2 a2 | (B<f)(e<d) (c<B)(A<^G) | A6 e2 | e2 (c>d) e2 a2 | Tf2 (d>e) f2 a2 | 
 (e<g)(f<a) (g<e)(f<d) |{d} e6 (f>g) | a3 f g3 e | (f<d) (f<a) !fermata!A2 z a | 
 (b<B) (g<e) d2 (Tc>d) | d4 !fermata!z4 | g3 G G3 g | (f<d)(f<a) A3 g | Tf2 ed Tc2 d2 | 
{d} e6 (fg) | a3 f g3 e | (f<d)(g<e) !fermata!a2 z A | B2 b2 (a<f)(g<e) | d6 :|  