Create a musical composition based on the alphabetized given sequence and the provided motif.
X:1
L:1/4
M:6/4
K:Bb
['F B2', 'G2 B']  
X:1
L:1/4
M:6/4
K:Bb
 B, | D2 F B2 d | B2 F B2 A | G3/2 F/E/D/ C2 F | D (B,2 B,2) B, | D E F G2 B | A3/2 B/ c G2 c | 
 c3/2 d/ c G2 B | A (F2 F2) :: c | f2 e d2 c | B2 A G2 d | e3/2 d/ e G2 B | A (F2 F2) E | 
 D E F G2 B | A3/2 B/ c F2 e | d3/2 e/ f F2 e | d (B2 B2) :|  