Develop a piece of music using the provided alphabet notation and motif.
X:1
L:1/8
M:4/4
K:Bb
['f2 ff f3 A']  
X:1
L:1/8
M:4/4
K:Bb
 F | B2 BB _d2 cB | f3 c c2 z c | _d3 d e3 e | f6 z f | f3 B B2 cd | e2 e2 z3 e | e2 FF F2 GA | 
 B6 z F | f2 BB _a2 _gf | _g2 g2 z3 g | f2 ff f3 A | B2 b4 _a_g | f2 ff f3 A | B6 z |]  