Powershell Script for Seven Minute Workout. Sends notification when the exercise or rest is done

Seven-Minute-Exercise-Notifier.ps1

$sound = New-Object System.Media.SoundPlayer;

function Initialize-Alert {
    $sound.SoundLocation="$env:WINDIR\Media\ringout.wav";
}

function Alert-User {
    $sound.Play();
}

function Instruct-User($activity, $duration) {
    Alert-User
    Echo "Do $activity"
    Start-Sleep -Seconds $duration
}

function Run-Circuit($ExerciseDuration, $RestDuration, $CircuitRestDuration, $Exercises) {
    process {
        $circuitNumber = $_
        $lastIndex = $Exercises.Length - 1
        $firstTask = $Exercises[0]
        $otherTasks = $Exercises[1..$lastIndex] 

        Clear-Host
        Instruct-User $firstTask $ExerciseDuration

        $otherTasks | % {
            Instruct-User "Rest" $RestDuration
            
            Clear-Host
            Instruct-User $_     $ExerciseDuration
        }
        
        Clear-Host
        Instruct-User "Rest from Circuit $circuitNumber" $CircuitRestDuration
    }
}

function Main($settings) {
    Initialize-Alert
    
    Clear-Host
    Instruct-User "Prepare" $settings.PreparationDuration
    1..$settings.NumberOfCircuit | Run-Circuit @settings
}

Main @{
    PreparationDuration = 30
    ExerciseDuration = 30
    RestDuration  = 10
    
    CircuitRestDuration = 30
    NumberOfCircuit = 3
    
    Exercises = @(
        "Jumping jacks"
        "Wall sit"
        "Push-up"
        "Abdominal crunch Core"
        "Step-up onto chair"
        "Squat"
        "Triceps dip on chair"
        "Plank"
        "High knees/running in place"
        "Lunge"
        "Push-up and rotation"
        "Side plank"
        "Side plank"
    )
}