Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/4
M:4/4
K:D
['B A']  
X:1
L:1/4
M:4/4
K:D
"D" D F A F |"G" G B B A |"D" F/G/A/D/"G" G F/G/ |"A" F E"D" D2 |"G" G A B A |"Em" G F F D | 
"D" F/G/A/D/"G" G F/G/ |"A" F E"D" D2 |"A" c d e A |"D" d e f2 |"A" c/d/e/A/"D" d c/d/ | 
"E7" c B"A" A2 |"A" A/B/c/A/"D" d F |"G" G B B A |"D" d/c/d/A/"A" B/c/d/e/ |"D" d"A" c"D" d2 ||  