To help the user, I can also add sound along with the LED output. If I click on the Music tab, I can get a series of different sounds. So, I can drag in Play Tone. Let's test that and see what that sounds like. (tone beeps) Okay, so we can decide, does that sound like a good sound or not? (tone beeps dully) That sounds potentially like a bad sound. (tone beeps brightly) That might be a good sound, so I'm going to select that. I can then do something for the bad class, but this time change the sound. (tone beeps dully) So you can now see I have three different tones for the three different classes. So, if I change to Good. (tone beeps brightly) we have the good sound, (tone beeps dully) we have the bad sound, (tone beeps) and we have the null sound.