There are two ways to backup and transfer your iPhone music tracks to Windows 10.
A. By performing a Smart backup of your iPhone to Windows 10 via CopyTrans. This will compare the contents of your iTunes library on your Windows 10 computer with the contents of your iPhone. Your iPhone songs, videos, playlists, and apps will then be automatically transferred to your iTunes library without creating duplicates.
B. By performing a Manual backup of your iPhone to Windows 10 via CopyTrans. This allows you to transfer your iPhone music, videos, playlists, and apps to a selected folder on your new Windows 10 PC. The Manual CopyTrans backup also allows you to transfer tracks, playlists, and apps of your choice from your iPhone to your new PC’s iTunes library.
Transfer iPhone music to Windows 10: YouTube video tutorial