Trish mentions that there are no hard and fast rules, so I'm just showing what I did with this technique. Started with some music sheets and sponged on some gesso, trying to leave some areas without the gesso, let it dry then ran a Distress ink pad over it (dtp) and let it dry. It's ok to speed the drying process with a heat tool.
Repeated the process covering less the area with gesso this time, allow to dry. Adding another color of Distress ink (dtp) and let it dry.
Repeated the process only using water downed gesso for a lighter covering and a darker application of Distress ink (dtp) removed a bit of the same color with a baby wipe and let dry.