To transfer any file, you just have to install the app on your computer and connect the Android device using a USB cable, selecting the MTP option.
From the window you can drag and drop files in a very simple manner. Once the transfer is finished, you just have to securely disconnect the USB cable to enjoy your files on your phone or computer.
Now, thanks to Android File Transfer, you can have a backup of the photos or music on your Android phone, or transfer any file to it from your computer.
Android File Transfer. Browse and transfer files between your Mac computer and your Android device. For Mac OS X only. No extra software is needed for. If you own an Android device and a Mac, then you know the pain of trying to transfer files between the two! Although Google has released an official Android File Transfer application for macOS, this application has its limits, including the inability to transfer any files larger than 4GB!Notes
Motorola Android File Transfer For Mac
Mac Android File Transfer
If you want to upload music from your computer to your collection on Google Play, you should do so with the Music Manager application.