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
['B2 AF', 'Bcde fd (3Bcd eAce dBAG FADA efdf', 'gfef (3Bcd fa a2 fa |1 gbag', 'FADA efdf eAce dedA Bcde fdec dBAB']  
X:1
L:1/8
M:4/4
K:D
 D3 A AGFG | ADAB AGFA | D2 AB AGFA |1 B2 AF GBAF :|2 B2 AF D3 e || f2 df eAce | dedA Bcde | 
 fd (3Bcd eAce | dBAG FADA | efdf eAce | dedA Bcde | fdec dBAB | dBAG FAEA |: (3Bcd fa a2 fa | 
 gbaf gfef | (3Bcd fa a2 fa |1 gbag e3 A :|2 gbag eaag || f2 df eAce | dedA Bcde | fd (3Bcd eAce | 
 dBAG FADA | efdf eAce | dedA Bcde | fdec dBAB | dBAG FAEA ||  