Construct a piece of music by converting the stated musical sequence into an alphabetical format and integrating the supplied motif.
X:1
L:1/8
Q:1/8=100
M:3/4
K:Bb
['B2 dc/B/', 'G2 BA/G/ dD']  
X:1
L:1/8
Q:1/8=100
M:3/4
K:Bb
 B2 dc/B/ fF | B2 dc/B/ fF | G g2 f ed | c/B/c/d/ cF GA | B2 dc/B/ fF | B2 dc/B/ eF | G g2 f ed | 
 c4 B2 || G2 BA/G/ dD | G2 BA/G/ dD | D G2 B AG | ^F3 G A2 | d2 f=e/d/ aA | d2 f=e/d/ aA | 
 A d2 f =ed | d3 ^c d2 |]  