Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:6/8
K:D
['B3 BAB f2 a fec eee fec']  
X:1
L:1/8
M:6/8
K:D
"D" f3"A" efg |"D" fdA"G" G3 |"D" FAd"G" GBe |"A" AB/c/d efg |"D" f3"A" efg |"D" fdA"G" G3 | 
"D" FAd"G" GBe |"A" Adc"D" d3 ::"Bm" B3 BAB | f2 a fec |"A" eee fec | Ace"G" fec |"Bm" B3 BAB | 
 f2 a fec |"A" eee fec | BcA"G" B3 :|  