I think Tyros 4 and PA3 are the strangest products in arranger history.
It is 2011. How is it possible with a TOTL arranger that has only 128 poly and only 4 real time parts? Something is seriously wrong here.
Absolute minimum acceptable real time parts are 3 Right, 2 Left and 1 Manual Bass but 8 to 10 real time part would be more reasonable.
At 2011 anything less than 256 poly is beyond surprise. Just plain strange.
I'll pass this generation also.