3.0 and the OG MPC One

What's Good? I have the OG MPC One. I just put 3.0 on it killing my memory space. A friend blessed me his whole library of samples and sounds on a huge SD (All Expansions, Marco Polo, Araab Muzik, etc) I want to add an external HD, transferring the songs I have to that HD freeing up the working memory. Please help me with the safest route to save the songs on it and continue to make new songs as I want to start selling beats. Just don't want to phuck it up but the songs I have on there don't have to be saved (Maybe a couple).

By memory space do you mean disk space? Just load up a project from your internal drive, go to SAVE > PRoject As' and save it to your SD card/USB disk. Repeat for all projects

Then in browser, hit the gear icon, uncheck 'hide project data folders' and then individually delete each projectData folder off your internal drive (SHIFT > DELETE FILE).

Thank you!