Isolate Strings

Hello, I am wondering if there is a way to isolate the strings in the music I am editing. The song is We Move Lightly by Dustin O’Halloran found here . During the song strings play over piano and I want to isolate the strings to overlay on another piece of music. I know the piano probably won’t completely go away, but I would like it to be as inaudible as possible without skewing the sounds of the strings. I am open to using plug-ins, anything that works! Thank you in advance for any help!!! (comprehensive instructions if possible, I am no professional)

Not to any great degree, at least, not with Audacity.
Many hours of detailed editing with “Melodyne” may get you close. You would need a version with “Direct Note Access” (price starts from $399).