$UtilDef=@"
using System;
public static class MidiUtils{
    public static void HighestNote(string notesString){
        Console.WriteLine("highestNote");
    }
}
"@
Add-Type -TypeDefinition $UtilDef
Remove-Variable UtilDef
[MidiUtils]::HighestNote("f4 g4 a#4 c5 d5 d#5 f5 g5 a5 a#5 c6 d6");