system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: In music are F# and G flat the same note?

Thanks!
gpt
Yes. These are called enharmonics. It's the same pitch written in two different ways.

Why?

Because of key signatures. It's convenient for everybody to have a key signature that relies on a particular number of flats or a particular number of sharps, but mixing the two is dreadfully confusing. It's easier to write, to play, and to remember an F# and a C# rather than a Gb and a C#.

This extends to the naming of keys as well. F# major and Gb major are identical musically, but written differently.