Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/8
Q:1/4=62
M:2/4
K:Bb
['FE DE']  
X:1
L:1/8
Q:1/4=62
M:2/4
K:Bb
 F2 FE | DE FG | _A2 G2 | F3 d/>c/ | B_A FE | DE FB | c2 d>c | B3 z | F2 FE | DE FG | _A2 G2 | 
 F2 z d/>c/ | B_A FE | DE FB | c2 d>c | B4 | d>e fe | d2 cB | =A2 F=E | F4 | d>e fe | d2 cB | 
 A>B c>d | B4 | FF F_E | DE FG | _A_A GE | FF z d/>c/ | B>A FE | DE FA/B/ | c2 d>c | B4 |]  