Cannot import music

Hi!

I am new here and hope this is the right place to ask for help.

I bought a Sansa clip + firmware updated V01.02.15F.

I transfered music to the device from my Mac but the music shows nowhere on the device.

It is as if the Sansa does not “accept/read and or show” the files at all.

Please I need assisstance.

Sincerely, 

Sally