Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:4/4
K:D
['BA F2 F2', 'fd F>A dF G>B dB A>c ec']  
X:1
L:1/8
M:4/4
K:D
 d>c BA F2 F2 | d>c ed B2 B2 | e>d cB c2 c>B |1 AA BA F2 F2 :|2 Ag fe d2 d2 || F>A dF G>B dB | 
 A>c ec d/c/d/e/ fd | F>A dF G>B dB | A>c ec d/f/e/c/ d2 :|  