Construct harmonious tunes in line with the outlined letter symbolism and the presented thematic component.
X:1
L:1/8
M:2/2
K:D
['d2 FG', '(3efg afbf afdf']  
X:1
L:1/8
M:2/2
K:D
 (3ABc | d2 FG Adef | gfed fdBc | d2 FG A2 AB | AGEG FDDA | d2 FG Adef | gfed fdBc | d2 FG A2 ag | 
 faef d2 || (3efg | afbf afdf | gfed cd (3efg | afbf afdf | abag fd (3efg | afbf afdf | gfed fdBc | 
 d2 FG A2 ag | faef d2 ||  