Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:2/4
K:Emin
['e>d ef ge', 'fg a2 gf']  
X:1
L:1/8
M:2/4
K:Emin
|: e>d ef | ge eg | fd df | g/f/e/d/ eB | e>d ef | ge e2 | a2 gf |1 ed eB :|2 ef ga || b>g gb | 
 af fg | a2 gf | ef ga | b>g gb | af fg | a2 gf | ed e2 | b>g gb | af fg | a2 gf | ed eB | e>d ef | 
 ge eg | fd df | g/f/e/d/ eB ||  