Compose a tune following the outlined musical pattern.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
|: (f/e/f/g/) af | dA FD | Bd AF | (FE) E2 | (f/e/f/g/) af | dA FD | Bd AF | (ED) D2 :| 
"^NB1-only one sharp in MS" |: (A/B/c/B/) Ad | gf ed | cd gf | (e/d/e/f/) e2 | (A/B/c/B/) Ad | 
 gf ed | ed ea | dd d2 :|  