Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/16
Q:3/8=50
M:3/8
K:D
['(d<f) A2', 'A2 (c<e)', 'a2 (b2a2f2)']  
X:1
L:1/16
Q:3/8=50
M:3/8
K:D
 (f<a) | (g<b) f<a e<g | (d<f) A2 (d<f) | (e<g) A2 (c<e) | (d<f) A2 (f<a) | (g<b) (f<a) (e<g) | 
 (d<f) A2 (d<f) | (c<e) A2 (c<e) |"^qu" d4 || (d<f) | (c<e) A2 (c<e) | (d<f) A2 (d<f) | 
 c<e A2 (c<e) | d4 (f<a) | (g<b) (f<a) (e<g) | (d<f) A2 (d<f) | (c<e) A2 (c<e) | d4 || a2 | 
 (b2a2f2) | d4 a2 | (b2a2f2) | e4 a2 | b2a2f2 | dcdfaf | edefgf | d4 |]  