Guitar Pro’s song library is a subscription service, which you can search by going to
I think I had a free trial of it when I first purchased GP, but I didn’t subscribe ($30/year) as I was already subscribed to Ultimate Guitar and downloading songs from there in GP format. Supposedly GP transcriptions are supposed to be better than those offered on Ultimate Guitar, but I can’t confirm.
Other than practicing songs with tab or standard notation, GP has been great for writing music/tab, and allows you to import/imbed audio files as tracks in your composition. You can also export tracks from GP to access with your DAW.