Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/4
M:3/4
K:D
['F A', 'a g f']  
X:1
L:1/4
M:3/4
K:D
 f (f/g/) (f/e/) | d F A | c F A | d F A | f (f/g/f/e/) | d F A | c A/B/c/A/ | d3 :| A (A/B/c/d/) | 
 e d c | d (d/e/f/g/) | a g f | b2 a/b/ | a f a | g f e | d3 | A (A/B/c/d/) | e d c | 
 d (d/e/f/g/) | a g f | b2 a/b/ | a f a | g f e | d3 ||  