Yeah, that’s exactly my concern too… i’m not sure how the XR18 actually handles this.
I guess it’s like this:
The first Solo press will mute everything else and each additional channel which is solo’ed will change from “mute” to “solo” and play with the others. This should be done quite easily as well with mute/unmute - but what if a channel is un-solo’ed? Will it change to “mute” again?
And what should be done if the last “Solo” is removed? I think the general “mute state” of the channels before the first solo had to be buffered to be restored when all solos are off again.
Or something like that…