I have an Iopd nano with many songs. The laptop with those songs in itunes crashed so I bought a Mac. Now on my new mac I have imported many new Cds to Itunes and syncronized them with an Ipod Touch. I also want to import all the songs of my ipod nano to the itunes of my new Mac but I don't want to syncronize the ipod nano. Basically I want to add to the Ipod touch (via itunes of my Mac) the songs that are now in my Ipod nano.
Is it possible?

Thank you