Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
M:4/4
K:Bdor
['d2 B2 d>d B2'  
X:1
L:1/8
M:4/4
K:Bdor
 F |"Bm" B<B d>e f>e f<g |"A" a2 e>c A>B c/B/A |"Bm" B<B d>e f>e f<g |"A" a2 e>c"Bm" B2- B :| z | 
"Bm" d2 B2 d>d B2 |"Bm" d2 c>B"A" A>B c<A |"Bm" d2 B2 d>d B2 |"F#7" f2 e>c"Bm" B2- B || z | 
"Bm" d2 B2 d>d B2 |"Bm" d>c B>A"A" B>A F>A |"G" B>c d>e"D" f>e f<g |"A" a2 e>c"Bm" B2- B |]  