Craft melodious tunes in accordance with the outlined letter representation and the provided thematic element.
X:1
L:1/8
M:4/4
K:C
['G |1', 'dcde fedf e2 c2 :|2 GABc dcdf']  
X:1
L:1/8
M:4/4
K:C
|: efed cGce | gfef d3 G |1 GABc dcde | fedf e2 c2 :|2 GABc dcdf | edcB c3 f |: e2 g2 c2 Bc | 
 dcBA G3 G |1 GABc dcde | fedf e2 c2 :|2 GABc dcdf | edcB c2 z2 ||  