I am working on recording some songs with my laptop with a Casio electronic keyboard and MAGIX music maker software, and I was just curious if there is anything that I can do to make the sound that is produced sound more like a real piano. I have tried using Audacity, Cakewalk and MidiPiano to come up with a better sound, but nothing seems to change when I change software, so now I am convinced that it's not the program that needs to be changed. If someone knows if there is any sort of downloadable sample or preset sound that I can use to record a more realistic piano sound while recording with MIDI, it would help a lot if you would please share it as well as any necessary instructions for downloading and installation. Thank you in advance!

P.S. If you know of a way that I can make the MIDI samples I already have (Windows default) sound more realistic in any of the softwares I listed above, please let me know of the process so I can try it out. Thanks again!