Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
['BA B2 B,4 FE DF B4 (3(dcB)', 'B2 FE DFBF DFBF G2 E2 E2']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:Bb
{c} BA | B2 B,4 FE | DF B4 (3(dcB) | c2 C2 C2 cB | Ac f4 ga | bagf gfed | ecdB BAGF | GBAc Bdce | 
 d2 B2 B2 || FE | DFBF DFBF | G2 E2 E2 GF | =EGcG EGcG | A2 F2 F2 ed | e2 g2 gfed | ecdB BAGF | 
 GBAc Bdce | d2 B2 B2 |]  