iPad version 9.3.5 (13G36) How to transfer to my new devices?

iPad version 9.3.5 (13G36) is full of my music studio material and due to limits in storage - until now I have not been able to transfer these safely to other devices. Now - is it possible? - to open in an app from the App Store which has not recognised my previous purchase history with musicstudio to import in full on other devices including another device - a Dell Inspiron laptop and continue and progresss with managing and editing my tracks as I hope to do?