Develop melodies utilizing the stated letter notation and the provided theme.
X:1
L:1/4
M:23/44
K:Bb
['[cE] [BD]2']  
X:1
L:1/4
M:23/44
K:Bb
|:"Bb" [BD] [BD]/[cF]/ [dB]/[ec]/ | [fd]2 [fd] |"Eb" [ge] [ge]"Bb" [fd]2 | 
"Eb" [ge] [ge]"Bb" [fd]2 |"F7" [ec]3/2 [ec]/ [cA] |"Bb" [dB]2 [BD] |"F7" [cE] [cE]"Bb" [BD]2 | 
"F7" [cE] [cE]"Bb" [BD]2 ::"F7" [fA]3/2 [eA]/ [cA] |"Bb" [dB]2 F |"Eb" [GE] [BG]"Bb" [FD]2 | 
"Eb" [GE] [BG]"Bb" [FD]2 |"F7" [fA]3/2 [eA]/ [cA] |"Bb" [dB]2 [BD] |"F7" [cE] [cE]"Bb" [BD]2 |1 
"F7" [cE] [cE]"Bb" [BD]2 :|2"F7" F [AE]"Bb" [BD]2 ||  