Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/4
M:3/4
K:C
['B B']  
X:1
L:1/4
M:3/4
K:C
 G | B B B | B d3/2 B/ | A G A | B2 (G/A/) | B B B | B d3/2 B/ | A B A | G2 G | B B B | B d B/B/ | 
 A G A | B2 G/A/ | B B B | B d3/2 B/ | A B A | G2 ||  