Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bb
['B2 B>B', 'g2 (gf) f4 e2']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bb
 F2 | B2 B>B B2 f>d | B2 B>B B2 f>d | g2 g>g g2 b>g |{g} f2 f>f f2 F2 | (ed) d4 f2 | (gf) f4 e2 | 
 d>ef>g B2 TA2 | B2 B>B B2 || d>e | f2 F>F F2 f>d |{f} e2 e>e e2 c>d | e2 F>F F2 e>c | 
 d2 [BB,]>[BB,] [BB,]2 g2 | (gf) f4 e2 | (ed) d4 b2 | (ba) a4 g2 | (gf) f4 e2 | d2 B>d e>gb>g | 
 f2 f>f f2 e2 | d>ef>g | B2 TA2 | B2 B>B B2 |]  