Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:4/4
K:D
['A2 FA DFAF', 'FDDd Addc dfed cdef gfed ceAe ceAe']  
X:1
L:1/8
M:4/4
K:D
 A2 FA DFAF | GGFG EcdB | A2 FA DFAF | GBAG FDDd :| Addc dfed | cdef gfed | ceAe ceAe | cdef gfeg | 
 faeg faeg | fdec defg | afge fdec | dBAG FDDd :|  