Stop Music Once Playing In Background PC - batch-file

Question

Im making a cool hidden folder passworded USB drive. I have a little image that opens and I want to play music using this code.
set "file=music.mp3"
( echo Set Sound = CreateObject("WMPlayer.OCX.7"^)
echo Sound.URL = "%file%"
echo Sound.Controls.play
echo do while Sound.currentmedia.duration = 0
echo wscript.sleep 100
echo loop
echo wscript.sleep (int(Sound.currentmedia.duration^)+1^)*1000) >sound.vbs
start /min sound.vbs
I want to end the music after the user types the password. Or just the ability to tell it to stop.
I found in another post on here a solution by a user but he doesnt explain how to use it. Here is the link to that post. Link to the post Im new to batch so just giving me a script wont help I kind of need to know how to use it.
This is the script I dont understand how to use that will stop the music. According to the post I linked.
#ECHO OFF >NUL
for /F "usebackq tokens=*" %%G in (
`wmic process where "CommandLine like '%%sound.vbs%%' AND Caption like '%%script.exe%%'" get ProcessID/value ^|find /I "="`
) do (
rem echo %%G
for /F "tokens=2 delims==" %%H in ("%%~G") do echo taskkill /T /F /PID %%H
)
Here is the password code im using.
#echo off
set pass= 123abc
echo Enter Password
set /p ui=
if %ui%==%pass% (goto open)
echo Wrong Password
pause
exit
:open
start folder

Answer 1

How to stop the music
Note taskkill command is echoed merely... Remove echo when debugged.
see instruction by #JosefZ here : https://stackoverflow.com/a/29271203/9222942
remove the 'echo' word from this line :
for /F "tokens=2 delims==" %%H in ("%%~G") do echo taskkill /T /F /PID
will becomes :
for /F "tokens=2 delims==" %%H in ("%%~G") do taskkill /T /F /PID
#ECHO OFF >NUL
for /F "usebackq tokens=*" %%G in (
`wmic process where "CommandLine like '%%sound.vbs%%' AND Caption like '%%script.exe%%'" get ProcessID/value ^|find /I "="`
) do (
rem echo %%G
for /F "tokens=2 delims==" %%H in ("%%~G") do echo taskkill /T /F /PID %%H
)