Design a musical arrangement using the alphabetical representation of the given sequence and the supplied motif.
X:1
L:1/16
Q:1/4=104
M:3/8
K:Bb
['B>AB>cd>e =e>fg>fd>B', 'B4 b2b>ab3/2f (^fg)g2g>=f e>dc>BA>B c>AF2 f2 b2b>ag>^f']  
X:1
L:1/16
Q:1/4=104
M:3/8
K:Bb
"^Moderato" F2 | B>AB>cd>e | =e>fg>fd>B | c>de>cA>c | B<d F2F2 | B>AB>cd>e | =e>fg>fd>B | 
 c>de>cA>c | B4 :: b2b>ab3/2f | (^fg)g2g>=f | e>dc>BA>B | c>AF2 f2 | b2b>ag>^f | ^f>gg2g>=f | 
 e>dc>BA>c | B4 :|  