Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/4
M:3/4
K:D
['F D']  
X:1
L:1/4
M:3/4
K:D
 A/G/ | F3/2 E/ D | D B, A, | A, B, C | D2 E/F/ | G G (F/E/) | F D F | A F D | E2 E/F/ | 
 G G (F/E/) | E F D | A F D | E2 D/E/ | F3/2 E/ D | D B, A, | A, B, D | G2 A/G/ | F E E | D B, A, | 
 A, B, D | D2 ||  