Ian, if you can't tell the difference between the "pro" arrangers I mentioned and the typical "home" arranger........I rest my case....There is an easily distinguishable difference..

A person would only have to play the keys, lift it up, or look for the output jacks..that are needed for PA connection..Also the higher quality features are obvious...

Surly ..you do notice the differences...You are just kidding us...Right?

If your interpretation of a "home" board is a single finger "option"..you are far off base..I will bet you..just about all who play the"pro" keyboards I mentioned ..do not play single finger recognition mode...

The vast majority of PSR/Tyros most likely do......"Home keyboards"..