Hello,
I am electrical and electronics engineer. I got my degree from UWE. I had the same project in my undergrad studies and I have done it successfully. I have designed the high pass, band pass and low pass filters and using LM3915 I have displayed the intensity of the sound according to the frequency. I am very confident that I can complete your project successfully and send you. I even have implemented it in a breadboard and PCB as well. Let me know if you are interested.
Thanks!
Looking forward to do this project if you permit me..