I wish me a Cubase-feature wich automatically is checking my projects for possible copyright problems like this: Cubase compares every track with a database of all songs that exist and gives me information whether the melody is free or the composer is alive or - if dead - his death is less then senventy years ago.
Your project contains parts of “Your My Heart, Your My Soul”. You can’t use them, because Dieter Bohlen is still alive.
Your project contains parts of “Meine Oma fährt im Hühnerstall Motorrad”. This is free stuff, you can use.
It’s a very interesting idea. However, there is currently no way to say whether a piece would violate copyright as there is no agreed method for deciding copyright issues. It’s down to judges and juries.
Or you could simply play back the chorus of your track on Shazam (app), it’ll tell you whether it recognises that melody or not. Of course, that doesn’t include every single track every released, and there is no such database. Saying that, two scientists have generated over 68 billion melodies to prevent copyright strikes:
sounds interesting but a bit complex to implement in Cubase, maybe there is already an AI that can analyze your compositions and that is dedicated to precisely what you ask … currently there are many AI of many types.