Who should I contact when I need technical support for GVIDO product? GVIDO MUSIC Customer Support July 23, 2021 08:41 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? What is the Support Center's operating hours? Adding scores How to modify the PDF page size/DPI: How many notes can be stored on the screen?