Develop musical pieces adhering to the outlined composition guidelines.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:4/4
K:Dmix
 ag |: fd d2 Adfd | ec c2 Gceg | fddc AGAB | cdBd cAGE | Ddfa gefd | ecca gceg | gaag fd^cd |1 
 e2 ag fdde :|2 e2 ag fddA |: d3 f g3 e | fagf d^cAG | FAdf g3 e | ceag fdde | f2 dc (3ABcGE | 
 Ddfa g2 fg | gaag fd^cd |1 e2 ag fddA :|2 e2 ag fdde ||  