FMOL is a freeware audiovisual software synthesizer for electronic music improvisation. The software brings a peculiar and intuitive interface that allows to control in realtime up to six synthetic voices plus effects by means of a simple mouse. ln this workshop we will explain the FMOL project and cover all of the software possibilities for electronic music improvisation. The workshop will conclude with several small concerts with the partici­pants. No special musical or computing skills are needed for the participants.