Back When I had my Iphone 5S. I handled my downloaded music through email. Just easier. Got a pretty penny selling that phone. Which went to the purchase of my next phone.
I own multiple computers. So my use case and thinking is different than yours.
https://www.sendspace.com/Just zip all up and send em to your preferred email address. Then download them. Extract. Done. I am weird that that way. Thinking outside of the box. I roll with a Samsung S7 Edge now . Life is simpler. My Micro sd card is 125 gigs.
I did not want to fork out for a 256 gig card.
Or use Wine like suggested above.