Develop a music arrangement by incorporating the given alphabetical sequence and the provided motif.
X:1
L:1/16
M:3/8
K:Bb
['B4 b2 A4 f2 A2(cA)(cA) B2F2G2 G2', '(d2e2c2) (B2A2B2) G^FGBAc B4 (d2B2)!wedge!a2 b2d2B2 G2', 'f2 e2c2A2', 'f2e2d2 c4 c2 c2d2e2 defedc B6 :|[M:3/8][K:G]', 'DBBDcD DddDcD DBBDcD', 'ADcAGF GABcdB cAecBA Bdefgd ecBAGF G4 z2', 'G4 G4 B4 A4 G4']  
X:1
L:1/16
M:3/8
K:Bb
 B4 b2 | !wedge!B2(dB)(dB) | A4 f2 | A2(cA)(cA) | B2F2G2 | !wedge!F2(E2D2) | G2 ecAc |{c} B6 :: 
 (d2e2c2) | (B2A2B2) | G^FGBAc | B4 !wedge!e2 | (d2B2)!wedge!a2 | b2d2B2 | G2 ecAc |{c} B6 :: 
 f4 b2 | d4 f2 | e2c2A2 | BABcde | f4 b2 | d4 f2 | e2c2A2 | B6 :: c4 c2 | !wedge!c2(d2e2) | 
 !wedge!d2(e2f2) | f2e2d2 | c4 c2 | c2d2e2 | defedc | B6 :|[M:3/8][K:G] DBBDcD | DddDcD | DBBDcD | 
 DddDcD | DBBDcD | DddDcD | DBBDcD | d4 z2 :: cAecBA | BGdBAG | ADcAGF | GABcdB | cAecBA | Bdefgd | 
 ecBAGF | G4 z2 :|[M:2/2][K:G] G8 B6 c2 | d8 B8 | c8 A8 | d8 A8 |] B4 G4 G4 B4 | A4 G4 G4 B4 | 
 A4 G4 F4 E4 | F8 D8 |]  