Construct tunes that conform to the predetermined musical pattern, featuring the provided motif.
X:1
L:1/4
Q:1/2=90
M:3/2
K:Bb
['B A/G/', 'F E D'  
X:1
L:1/4
Q:1/2=90
M:3/2
K:Bb
 B,2 D F B A/G/ | F E D C B,2 | f e/d/ c B A G | F G A B c2 | e d/c/ d E D2 | d c/B/ c D C2 | 
 c B/A/ B A/G/ F/E/D/C/ | B,/C/D/E/ F/G/A/c/ B2 |] f3/2 g/4a/4 g f e d | (F G/_A/) G F E D | 
 e f/g/ f e d c | E F/G/ F E D C | B, D F/_A/G/F/ G E | C E G/B/A/G/ A F | d c/B/ c A B A/G/ | 
 F E D C B,2 |]  