Yes you CAN mute each and every one of the 16 Song tracks and each and every one of the 8 Style tracks if you so desire. And like UD said the Tyros has 'beautiful' "color" icons indicating what instrument is being played you just have to get to know what each 'individual' icon represents by trial and use. A Guitar playing on whatever track will have a Guitar icon represented in the track display but there are "55" different types of Guitars (not including XG Guitars) that have their own unique icon so the trick is identifying each icon with each individual Guitar. But you still have the ability to simply press a panel button that will take you to the actual Guitar Voice being played in the Guitar 'category' of the Panel Voices. Lesser Yamaha Arrangers are more simplified in their representation of what is being played (icons) in the Song or Style tracks, ie., PSR 2000, etc., but they also have the ability to simply press a button to display in any Voice 'category' what unique instrument is actually being played. And the PSR 2000/2100 also CAN mute each and every voice if necessary in the Song or Style tracks too.

Best regards,
Mike