Construct musical melodies following the designated letter arrangement and the given motif.
X:1
L:1/8
M:2/4
K:B
['CC CC', 'F, [M:3/4] F,2 F, z F,F, ||[M:2/4]', '', 'DC CB, G,G, ||[M:3/4] F,F,', 'G,G, [M:2/4] F,3 F, F,2 F, z', '', 'G,D, F,2 F, z', 'G,E, F,2 E,C, F,F,- F,F,']  
X:1
L:1/8
M:2/4
K:B
 F,F, | CC CC | CC DC | CB, G,G, ||[M:3/4] F,F, F,F,/E,/ G,G, ||[M:2/4] F,3 F, || 
[M:3/4] F,2 F, z F,F, ||[M:2/4] CC CC | CC DC | CB, G,G, ||[M:3/4] F,F, F,F,/E,/ G,G, || 
[M:2/4] F,3 F, | F,2 F, z |]: F,E, G,G, | B,>G, B,F, | G,>F, G,D, | F,2 F, z | G,G, G,E, | 
 F,2 E,C, | F,F,- F,F, | F,4 :|  