Who should I contact when I need technical support for GVIDO product? GVIDO MUSIC Customer Support March 01, 2021 00:51 Updated Please reference our Product Support FAQ. If this does not solve your issue, please contact our GVIDO Customer Support. Related articles It doesn't operate properly. What should I do? Adding scores How to modify the PDF page size/DPI: What is the Support Center's operating hours? How many notes can be stored on the screen?