Craft a musical piece adhering to the specified structure.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:4/4
K:D
"^A" fg |: afaf d2 ef | gfge c2 ef | gfed cABc | defg a2 fg | afaf d2 ef | gfge c2 ef | 
 gfed cABc |1 d2 f2 d2 fg :|2 d2 f2 d2 A2 |:"^B" FAdA FAdA | GBdB GBdB | ABcd efec | defg a2 A2 | 
 FAdA FAdA | GBdB GBdB | ABcd efec | d2 f2 d2 A2 :|  