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
['A2 FA', 'd2 cB']  
X:1
L:1/8
M:4/4
K:D
|: A2 FA A2 FA | B2 GB B2 GB |1 A2 FA A2 FA | EFGA BcdB :|2 AdcB AGFE | DDCE D2 |: Adfd Adfd | 
 Acec Acec |1 Adfd Adfd | dABc d2 cB :|2 d2 cB AGFE | DDCE D2 ||  