Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
Q:3/8=120
M:6/8
K:G
['B GBd gdB', 'b/a/ g2 d edB']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:G
"_No key Sig in MS" B | GBd gdB | d>ed d2 B | GBd gdB | A>BA A2 B | GBd gdB | def gfe | ded cBA | 
 GAG G2 || b/a/ | g2 d edB | d>ed d2 b/a/ | g2 d edB | A>BA A2 b/a/ | g2 d edB | def gfe | 
 ded cBA | G>AG G2 |]  