Question: how to save music to sd card on galaxy note 4?
Answer: First, select the 'Apps' icon.
Go to 'My files' from there.
Choose the option 'All files' in 'My files'
Now select 'Device storage' which contains all the files, i.e. music, movies, videos, DCIM (photo folder) pictures and all the other things that you have stored on your phone.