Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:2/4
K:Bb
['(.B.B.c.c) (.d>.e)', '(B/d/ f)(.f.g.a) b2 (.a.a)']  
X:1
L:1/8
M:2/4
K:Bb
 (F/>G/) | (.B.B.c.c) | (.d>.e) (.f.d | .e.d) (Tc>B) | B B2 (3F/G/A/ | (.B.B.c.c) | 
 (.d>.e) (.f.d) | (.e.d) (Tc>B) | B B2 || (B/d/ | f)(.f.g.a) | b2 (.a.a) | (.g.g.a.g) | 
 (.f .f2) (B/d/ | f)(.f.g.a) | b2 (.a.a) | (.g.g) .a(b/a/) | g d2 (e/f/ | g)(.g .g>.f) | 
 .e c2 (d/e/ | f).e (Tc>B) | .B B2 ||  