Mac OS Catalina - How to download Itunes can be support this version

Dear Friend,

Recently i updated my Mac to version OS Catalina. Meanwhile, i realised that my Itunes was missing in my macbook. I have been trying to download few itunes apps from the link below. Unfortunately, all the itunes downloaded which couldn't to installed. Reason: incompatible for the version https://support.apple.com/downloads/itunes

Please kindly advise.