Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:2/2
K:Bmin
['B2 A2']  
X:1
L:1/8
M:2/2
K:Bmin
"Bm" F2 B2 dc B2 |"F#m" A2 c2"A" ed c2 |"D" d2 f2 e2 d2 |"F#m" c2 B2 A2 G2 |"Bm" F2 B2 dc B2 | 
"F#m" A2 c2"A" ed c2 |"D" d2 f2 e2 d2 |1"F#m" c2 A2"A" E4 :|2"F#m" c2 A2"A7" B2 c2 |: 
"D" d2 dc dAFA |"Em" d2 dc defe |"D/F#" d2 dc dAFD |"G" GDFD"A" EDCD |"D" d3 c dAFA | 
"Em" dcde"D/F#" fg a2 |"G" gbag"D" fedc |1"Bm" B2 d2"A" c2 e2 :|2"Bm" B2 d2"F#m" cB A2 |]  