Construct musical phrases based on the provided motif adhering to the specified arrangement.
X:1
L:1/4
M:6/4
K:Bb
['B2 F', 'F2 f'  
X:1
L:1/4
M:6/4
K:Bb
 B | B2 F G2 A | B2 c d2 e | f3/2 g/ f e f d | c3/2 B/ A B2 F | G3/2 A/ B D2 E | F3- F2 :: f | 
 f3/2 g/ f e2 d | c d B A2 G | A B c c d =B | c3- c2 B | A G A F2 f | f e f d2 f | A2 B B c A | 
 B3- B2 |]  