Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/8=244
M:4/4
K:Bb
['B>GF>E D>CB,>d e<c f>d c/c/c c2 c/B/_A/G/', 'B>fd>f B>fd>f']  
X:1
L:1/8
Q:1/8=244
M:4/4
K:Bb
 B>GF>E D>CB,>d | e<c f>d c/c/c c2 | c/B/_A/G/ A/G/F/E/ D>CB,>d | e<cf>d B/B/B B2 :| | 
 B>fd>f B>fd>f | e>gd>f c/c/c c2 | B>fd>f B>fd>f | e<gf>d B/B/B B2 | B>fd>f B>fd>f | 
 e>gd>f c/c/c cg/a/ | bgaf gefd | e<gf>d B/B/B B2 |]  