The Singing Toolkit demo presents three approaches to real-time gestural control of voice : control of vocal synthesis using the Cantor Digitalis instruments; syllabic re-sequencing and modification of pre-recorded vocal tracks with the Voks instrument; control of real-time vocal performances, using DAFx and inertial devices. These three approaches exemplify the potential of gesture-based control to enhance vocal performances, expand the creative possibilities in vocal music production, and open up new avenues for expressive control and artistic exploration.