* USB cable: Connect your player to your computer using a USB cable. Once connected, you should see the player appear as a drive on your computer. You can then drag and drop music files from your computer to the player.
* Bluetooth: If your player supports Bluetooth, you can connect it to your computer wirelessly. Once connected, you can use a Bluetooth file transfer program to send music files from your computer to the player.
* Wi-Fi: If your player supports Wi-Fi, you can connect it to your home Wi-Fi network. Once connected, you can access music files stored on your computer by using a media server program.
* Cloud storage: If your player supports cloud storage, you can upload your music files to a cloud storage service such as Google Drive or Dropbox. Once uploaded, you can access the files from anywhere, including on your player.
The method you choose will depend on the features of your player and your computer. If you're not sure how to get music from your computer to your player, consult the documentation that came with your player.