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
['D2 FA d2 Bc defg ecAc d2', 'defd gefd gabg']  
X:1
L:1/8
M:4/4
K:D
 A, | D2 FA d2 Bc | defg ecAc | d2 cd BGED | CEAG FDEF | D2 FA d2 Bc | defg ecAc | d2 cd BGED | 
 CEAG FDD :| A | defd gefd | gabg ecAc | defd gefd | gabg f3 e | defd gefd | gabg ecAc | 
 d2 cd BGED | CEAG FDD :|  