Thank you all who tried to help I have just read the PSR2000 and TYROS manual and it is sad that Yamaha arranger don't let you record different chord variations all you can do is record in Cmaj7 and the keyboard will change the chord when you change the chord but there is no way of recording minor or 7th variations or any other for that matter, even Roland allows you to do that up to 3 chord variations Korg definitely win in the complex style creation department with up to 6 chord variations in each style.