Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
Q:1/4=120
M:2/2
K:C
['ggg^f aaa^f gage', 'a2 g2']  
X:1
L:1/8
Q:1/4=120
M:2/2
K:C
"^Fast" e^f | ggg^f aaa^f | gage cc c2 | GGBG dGBd | cBcd ee e2 | ggg^f aaa^f | gage ccec | 
 GGBG dGBd |1 dBcd c2 :|2 cBcd cc c2 :| G2 cc cBcc | a2 g2 gBBB | a2 g2 gBBB | a2 g2 g4 | 
 G2 cc cBcc | a2 g2 gBBB | a2 g2 gBBB |1 d2 c2 c2 cc :|2 d2 c2 c2 ||  