PowerShell wait music

$scriptDir = Split-Path -Path $MyInvocation.MyCommand.Definition -Parent  
$musakFilePath="$scriptDir\musak.mp3"  
$wmplayer = New-Object System.Windows.Media.MediaPlayer  
$wmplayer.Open($musakFilePath)  
Start-Sleep 2 # This allows the $wmplayer time to load the audio file  
$duration = $wmplayer.NaturalDuration.TimeSpan.TotalSeconds  
$wmplayer.Play()  
$stopwatch=[system.diagnostics.stopwatch]::StartNew()  
while ($stopwatch.Elapsed.Seconds -lt $duration)  
{  
Write-Progress -Activity "Doing stuff, please hold…" -status "$($stopwatch.Elapsed.Seconds) seconds" -percentComplete ($stopwatch.Elapsed.Seconds / $duration*100)  
# do something  
# break when done  
start-Sleep -s 1  
}  
$wmplayer.Stop()  
$wmplayer.Close()