Yamaha is using the word glide to apply to something slightly different than portamento. When you select ... According to the instrumenta#39;s spec sheet, glide time is variable from .015 seconds to 15 seconds, but the unit we were testing would ... There are trim pots on the rear panel for scaling the instrument a but there are no instructions in the ownera#39;s manual on how to use them. ... We didna#39;t have space this month to go into detail about the CS-20Ma#39;s big brother, the CS- 40M. Brieflyanbsp;...