Create a musical composition by blending the allocated alphabetic symbol and the suggested melody.
X:1
L:1/8
M:2/4
K:Bb
['BB/B/ d/B/d/f/']  
X:1
L:1/8
M:2/4
K:Bb
"Bb" (3_bag fd | BB/B/ d/B/d/f/ |"F" FF/F/ A/F/A/c/ |"Bb" BB/B/ d/B/d/f/ |"Bb" (3_bag fd | 
 BB/B/ d/B/d/f/ |"F" FF/F/ A/F/A/c/ |"Bb" B z B2 |:"Gm" GB GB |"D" A D2 D |"Gm" GB GB |"D" d z d2 | 
"Gm" GB GB |"D" A D2 D | dc BA |"Gm" G z G2 :|  