Develop a piece of music using the provided alphabet notation and motif.
X:1
L:1/8
M:2/4
K:Bb
['d2 BG FB B2 c2 Bc dB']  
X:1
L:1/8
M:2/4
K:Bb
 d2 BG | FB B2 | c2 Bc | dB F2 | F2 GF | Fe d2 | c2 GA | B2 z2 |]  