Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:4/4
K:Bb
['F2 F3 BB/A/GG>F F4']  
X:1
L:1/8
M:4/4
K:Bb
 F2 | F3 BB/A/GG>F | F4 z2 F2 | F3 BB/A/GG>F | F4 z FFF | B2 B2 c2 e2 | d4 z cBA | F2 c2 B2 A2 | 
 B4 z2 |]  