Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:4/4
K:C
['EAB cBc', 'aga ge^f gfg']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:Amin] g (e4!p! a) ue[Q:1/8=160].G | EAB cBc | EGG GED | EAB cBc | dcd ecA | EAB cBc | 
 EGG GAB | Aag edB | cAA A2 :| B | Aaa aga | ge^f gfg | Aab aec | de^f gdB | AB/A/a aga | 
 ge^f gfg | e^fe dcB | cAA A2 :|  