the command name is actually ,

play.sh

#!/bin/sh

#export DRI_PRIME=1

cmd=mpv

param='-fs --msg-level=all=no,cplayer=info'
filter='/Playing/!d; s/^Playing: //'

order='%C@' # by default, order by ctime
sort=-n     # (which is a numeric sort)
reverse=-r  # ... show newer videos first
depth=      # ... and do it recursively
loop=       # ... without looping

[[ -n $MYT_MUTE ]] && set -- -u "$@"
[[ -n $MYT_1 ]] && set -- -1 "$@"
[[ -n $MYT_REC ]] && set -- -r "$@"

while getopts 1rcmsaRnolugh o; do
    case "$o" in
	1) depth='-maxdepth 1';;  # just the current directory
	r) depth=;;               # recursively

        # a video uploaded in 2009 but downloaded in 2015 will have
        # mtime in 2009 and ctime in 2015
	#
	# (note: moving the video to another directory actually bumps
	# the ctime)

	c) order='%C@'; sort=-n;;    # order by ctime (download time)
	m) order='%T@'; sort=-n;;    # order by mtime (upload time)

	s) order='%s'; sort=-n;;     # order by size
	a) order='alpha'; sort=;;    # order lexicographically
	R) order='random'; sort=-n;; # order at random

	n) reverse=-r;; # newer first
	o) reverse=;;   # older first

        l) loop=--loop=inf;; # infinite loop

	u) mute=--mute=yes;; # no sound

	g) filter=; param=;;    # debug

	h) ${PAGER-less} "$0"; exit;;
    esac
done
shift $((OPTIND-1))

find -L "$@" $depth -mindepth 0 \
     -not -path '*/\.*' \
     -type f \
     -name '*.*' \
     -printf "$order %p\0" \
    | awk 'BEGIN { RS="\0"; srand() } {
        if ($1 == "random")
          sub ($1, int(rand()*100000));
        printf "%s\0", $0
      }' \
    | sort -z $sort $reverse \
    | sed -zr 's/^[^ ]+ //' \
    | xargs -0 $cmd $loop $mute $param 2>&1 \
    | sed "$filter"


#     -exec $cmd {} + | sed "$sed"