Does not see the song files on the computer

I loaded a bunch of songs for my sister on the player and while they are on there and playing, they do not show on the computer. She wants to delete some of the stuff i loaded for items more her taste. Any ideas why it is not appearing?

if your device is stuck in MSC mode it’ll only show a certain part of the drives contents. in order to force a switch in mode to MTP mode, delete all the shown files off the drive and reconnect the device. It should default to MTP mode and you’ll be able to access your previous music.