Create musical pieces that follow the designated structure and incorporate the provided musical motif.
X:1
L:1/8
Q:1/4=66
M:2/4
K:Bb
['B>A B>c d>d']  
X:1
L:1/8
Q:1/4=66
M:2/4
K:Bb
"^Larghetto" F | B>A B>c | d>d f>d |{d} c>B c<d | B2 z F |{Ac} B>A B>c | d>d f3/2{=e_e}d | 
{d} c>B c>d | B2 z f | f>A A>c | c>B{ABc} Bz/G/ | F<B (Bc/d/) |{=B} c2 z F | B>A B>c | 
 d>d f{=e_e}d |{d} c>=B c"_>"(e/d/) | B2 z |]  