Types/RoughDraft.Media/set_Composer.ps1

<#
.SYNOPSIS
    Sets the Composer Metadata
.DESCRIPTION
    Changes the Composer metadata for a media file (persistently, if possible)
#>

param()
$propertyToSet = @{composer=$args -join '/'}
if (-not $this.'.Metadata') {
    $this.'.Metadata' = [Ordered]@{}
}
$this.'.Metadata'.Composer = $propertyToSet.Composer
Set-Media -InputPath $this.InputPath -Property $propertyToSet