Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/16
M:4/4
K:Bb
['B2>c2{Bc} d2>c2 (BA)(Bc)', 'f2>g2 (gf)(ed)']  
X:1
L:1/16
M:4/4
K:Bb
"^Slow" F2 | B2>c2{Bc} d2>c2 (BA)(Bc) (ed)(cB) | B2f2 (gf)(ed) Td2c2c2F2 | 
 B2>c2{Bc} d2>c2 (BA)(Bc) d2>c2 | B2F2 FGFE D2B,2B,2 :| (de) | f2>g2 (gf)(ed) f2(bg) (fd)(cd) | 
 B2>c2 Bcde Td2c2c2(de) | f2>g2 (gf)(ed) f2(ag) f2(dc) | B2>c2 (Bcde) Tc4{Bc} B2(de) | 
 f2>g2 (gf)(ed) f2(bg) (fd)(cd) | B2>c2 Bcde Td2c2c2dc | B2d2G2B2 F2B2 (GF)(ED) | 
 E2>G2 FGFE D2B,2B,2 |]  