Hey @GlytchMeister, thanks for reaching out to the Community!
The password must be at least 8 characters. However, Spotify recommends that you use a long(er) password with letters, capitals, numbers, and special characters. There's some more information here on how to protect your account.
Hope this helps. I'll be here if you need anything else!
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…