Chas no that's not what I am saying...
I think we should support each others interest, no matter what brand ect...and sometimes I think some people just live to find a way to be negative. You made what has been posted here like no big deal you can already do that...well, everything so far I heard on the VP770 is not even close...but the real issue is this is a post about a new, possible feature for one of the most successful, most poular arranger keyboads alive today. This is further expanding the VH2 HW on the T4 (and soon the Clavinova 509 follow on model) Why always throw cold water on something fun & positive. The request for a demo based on what you said could be already done, was to hear how good/poor it is, not to say your info is incorrect. Peace.

This thread is specificaly about a Yamaha leading edge development I fould out about at a clinic, by a real top level Yamaha guy that has contributed lots of stuff to many Yamaha products....and it is on a very popular set of products, one being the T4. I just think it is very exciting that maybe, just maybe we could have something on an arranger for us in a group that are not really singers. I play arranger because I love to be a one man band and have some really great mucic coming from my limited musical training. I know that there are some here that are top notch performers, can sing, dance, play multiple instruments etc...but an arranger can also be used by home players to make some great music for us that are not gigging PRO musicians.
This feature would bring a lot of fun and a few laughs for us less fortunate that can not get the pitch right but would like to sing our favotite songs.

My concern now is that yamaha will ignore this great development and we will once again, like many things we have asked yamaha (and others as well) for, be left out. Lets hope that does not happen.
So, once again go to the web site and support the feature, even if you don't want it, or think it sucks...please help the rest of us out here. It only take a couple minutes to post a comment on Youtube....
As to affordability, I really don't know, but knowing Craig...he developed this to sell HW, not to make lots $$ on this fun feature...It could be free, or IMHO it will not be a lot of $$. To us that cannot sing well, and no lessons can fix that...I think we would pay something for it...me, maybe $100 - 200. depending on all the details of it's capability/