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 FD']  
X:1
L:1/8
M:4/4
K:D
 D D2 | D2 FD A2 FD | GA BG A2 FD | GA BG A2 FA | =C2 E2 E2 Dd | D2 FD A2 FD | GA BG A2 FD | 
 dA FE =CD EG | F2 D2 D2 (3ABc | d2 ed e2 de | dc BA d2 F2 | G2 BG F2 AF | E2 A2 A2 (3ABc | 
 d2 ed e2 ag | fe d f2 d2 G2 | B GF GA F d2 | F2 D2 |]  