If using a Macintosh computer, additional software is required in order to transfer files.
Connect the device to a computer using the supplied USB cable.
If the device prompts for permission to transfer files, tap ALLOW.
If necessary, touch and hold the Status bar (located at the top) then drag to the bottom.
The image depicted below is an example.
Tap USB charging.
Select File Transfer.
Selected when a blue dot is present.
Launch File Explorer or Windows Explorer.
Using the computer keyboard, press Windows+E ( +E) keys.
Alternatively, right-click Start then click Open Windows Explorer or File Explorer.
Using File or Windows Explorer, navigate: Galaxy Tab S4 > Tablet > Music.
Galaxy Tab S4 is listed under the Portable Devices section.
If the files are stored on the memory card, navigate: Galaxy Tab S4 > Card then choose the location of the files.
Utilize the computer to copy music files from the music folder to the desired location on the computer's hard drive.