Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
Q:1/8=120
M:2/4
K:G
['BG G/A/G/F/ DG', 'Bd g2 fe']  
X:1
L:1/8
Q:1/8=120
M:2/4
K:G
 A | BG G/A/G/F/ | DG G>A | BG GF/G/ | Ad d/e/d/c/ | BG G/A/G/F/ | DG GB/d/ | ed cA | AG G :| A | 
 Bd g2 | fe e2 | cd f2 | ed d/e/d/c/ | Bd g2 | fe a>g | fd ef | ag g :|  