Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/4
M:3/4
K:G
['B/B/ d e']  
X:1
L:1/4
M:3/4
K:G
 B/B/ d e | c/B/ c e | B/B/ d e | B/A/ B F | G/E/ B c | d/E/ c e | G/E/ B c | d/A/ B F |]  