Educational services, namely, conducting classes, seminars, conferences, workshops, retreats, camps and training in the field of inspecting, analyzing, auditing, controlling and verifying code security; none of the aforesaid services in connection with the organization of music festivals, music clubs, discotheques, the production of music disks and records, music recordings, music composition services and disc-jockey services; the aforesaid services not used in connection with systems using s...