Downloading music sample from computer to Akai Key 37

Hey all. I’m sure this is a common question. Brand new to the MPC world and am overwhelmed. Can anyone tell me step by step how to transition a song from my computer to my Akai key 37. I’m sure it’s straightforward, but I can’t seem to figure it out. Thanks!

Either use a usb stick or SD card and put the sample on there, then plug it into the Key37, browse for it and load it in.
Or hook up the Key37 to your pc with a usb cable. The pc should show up in the Key37 browser. Load it in.

Or in controller mode, find the the Key37 SD card in your computer (it should show up in your drives) and copy the sample too it.

Or use an audio cable from your pc soundcard to the inputs of the Key37 and sample it in.