Craft a musical piece adhering to the specified structure.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
Q:1/4=90
M:3/4
K:C
 C |[K:G]"^62...a Retreat" A2 B/A/G/F/ B/A/G/F/ | A2 B/A/G/F/"^1"Ad | A2 B/A/G/F/ B/A/G/F/ | 
 GEEF GB :: ADDA B/A/G/F/ | ADDA Fd | ADDA B/A/G/F/ | GEEF GB :: d>edA FA | d>edA df | 
 df f/e/d/^c/ e/d/^c/d/ | BeeF GB :|  