I have 2 ipads how do i share a song to another ipad with all the tracks please help.

On the project tab hilight the song.
Press the share button.
Then you can choose how to share it. For example email

Then go to your other device and open your email or iCloud etc find the song and then you should be able to ‘open in’ music studio

With 2 iPads, the simplest way would be to share the project via AirDrop. Enable WiFi and Bluetooth on both devices, turn them both on and put them next to each other, then they will appear as Airdrop targets in the Share menu.