Western scale, maybe I meant western tuning. Sorry for that I apologize lol. Yes there is a way you can make the notes from fine tuning to equal temperaments within the vz1. In edit mode go to menu 1 number 5 there are up to 6 individual points of each tunings. Specify what keys you want to change on each of the points and specify the levels of each points. (level is your tuning). So everything is in menu 1 number 5 and can only be approximate of how a slendra scale sound and cannot be quite exact. You may have to sort of mess around with the keys for what notes to sound and you may have to detune the whole keyboard to accomplish this slendra scale tuning. Hope this helps at least or if someone can explain better than I can on this.