Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/16
Q:1/4=50
M:3/8
K:D
['f4 e2 d4 (d<f) (e<g) (c<e)', '(e<g) (c<e)', 'gaeaga fadafa gaeaga']  
X:1
L:1/16
Q:1/4=50
M:3/8
K:D
 A2 | f4 e2 | d4 (d<f) | (e<g) (c<e) (d<f) | A2A2A2 | f4 e2 | d4 (d<f) | (e<g) (c<e) (A<c) | d4 :: 
 (d<f) | (e<g) (c<e) (d<f) | (e<g) (c<e) (d<f) | (c<g) (c<e) (d<f) | A6 | f4 e2 | d2(d<f) | 
 (e<g) (c<e) (A<c) | d4 :: A2 | dcdefg | a2f2a2 | babc'd'b | a2faba | | (fa) | gaeaga | fadafa | 
 gaeaga | fadafa | gaeaga | fad'c'ba | babgec | d4 ||  