Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:6/8
K:D
['F2 A', 'bag fed edc d3']  
X:1
L:1/8
M:6/8
K:D
 A, | DED F2 A | d2 f ecA | G2 B F2 A | E2 F GFE | DED F2 A | d2 f ecA | Bgf edc | d3 d2 :| a | 
 a2 f f2 d | A2 a agf | g2 e e2 c | A2 g gfe | f2 d g2 e | a2 f bag | fed edc | d3 d2 a | aff fed | 
 Adf agf | gee ecA | Ace gfe | fed gfe | agf bag | fed edc | d3 d2 |]  