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', 'af gfga']  
X:1
L:1/8
M:4/4
K:D
 BAFA D2 FA | D2 FA BE E2 | BAFA D3 F | ABde fedB | BAFA D2 FA | D2 FA BE E2 | BAFA DEFG | 
 ABde fd d2 ||{f} a3 f a2 af | gfga be e2 |{f} a3 f gedB | ABde fd d2 | faaf a2 af | gfga beeg | 
 fgfe dedB | ABde fedB ||  