I am interested in transposing 18 musical themes in the NES game Kirby's Adventure. I have the NSF file at hand, and I figure once I'm able to transpose a bunch of the desired themes to keys of my choice, I will be able to locate them in the ROM and transpose them within the game itself. I have a hex editor on my PC.
I exported the 18 pieces from the NSF file into individual WAV files, transposed them using Audacity, and saved them into 18 new WAV files. Then, I transferred the files to a zipped folder (ZIP file). I wish I could attach the folder to this thread to give readers an idea of where I want to go, but I don't think I can.
Is there perhaps a better method of transposing the music of Kirby's Adventure besides using a hex editor? If so, are there utilities and/or applications I could use to accomplish such a task?