Create a musical composition based on the alphabetized given sequence and the provided motif.
X:1
L:1/8
M:3/4
K:Bb
['', '(3B2 c2 B2', '[DB]2 [DB]3 [FB] [GB]2 [FB]2 [EB]2 [DB]3']  
X:1
L:1/8
M:3/4
K:Bb
 DE |: (3F2 G2 F2 D2 C2 | B,3 B, DF | (3B2 c2 B2 A2 B2 | G3 F G2 | FG AB cd | e4 ga | g3 f ^eg | 
 f4 DE | (3F2 G2 F2 D2 C2 | B,3 B, DF | (3B2 c2 B2 A2 B2 | G3 F G2 | FG AB cd | ec Ae cA | 
 (3B2 c2 B2 F2 D2 | [B,D]4 DE :: [DB]2 [DB]3 [FB] | [GB]2 [FB]2 [EB]2 | [DB]3 [Bf] [Bf][Bf] | 
 [Af]4 CD | E3 D EF | A3 B AG | FG FE DC | D3 C DF | [DB]2 [DB]3 [FB] | [GB]2 [FB]2 [EB]2 | 
 [DB]3 [Bf] [Bf][Bf] | [Af]4 CD | E3 D EF | A3 B AG | FG AB cd | [DB]6 :|  