What do I mean by 'Turn on your 'Original Sound'?

The Original sound for musicians profile allow for all of you microphone sound to be transmitted clearly. Zoom automatically filters out sounds it doesn't think are human voices, which is normally useful in removing distracting background noise. However it can make hearing musical instruments difficult, so we need to remove the filter by turning on the 'Original Sound' in the settings. 

Below are specialised instructions on how to turn it on via your category of device: