Extract a random list of tracks in a CSV file

I have a CSV file with a list of several hundred music tracks and would like extract 100 pieces randomly. I am completely new to bacth scripting.

The creation of the table is correct but I would like to be able to make it random and not duplicated.

The second FOR (in :RANDOMIZE) doesn't echo anything

@ECHO OFF

setlocal enabledelayedexpansion

set _total=0
set _max=100

for /f "skip=1 tokens=11 usebackq delims=;" %%I in ("playlist.csv") do (
    set _filepath=%%~I
    set _ext=%%~xI

    if "!_ext!"==".flac" CALL :ADDARRAY
    if "!_ext!"==".mp3" CALL :ADDARRAY
)

:RANDOMIZE
for %%a in (%_array%) do (
    set /A _total+=1
    echo %%a
    if "!_total!"=="!max!" @goto :eof
)

:ADDARRAY
set /A _cpt+=1
set _array[!_cpt!]=!_filepath!
@goto :eof