MPV cannot read filepaths from commands

[Christian-Nerd]

I want to automatically play video and audio from a course that I have installed on my system. Because each video/audio file is in their own separate folders, I use this command

mpv "$(find ~/Documents/[Path to Course]/[Path to first unit -iname "*mp3" | awk -F "\n" 'BEGIN{ORS=" "} {gsub(" ", "\\ "); print $1}')"

to separate the file paths. This did not work even when I added single and double quotes as MPV read all these files wrong. When it used double/single quotes it read multiple files as one. When I escaped all spaces, then it read each word as a filepath. How do I get MPV to read filepaths from commands?

System Information

[guidocella]

find | mpv --playlist=-