con·cert·ize \ˈkän(t)sə(r)ˌtīz, -ə(r)d.ˌīz\intransitive verb (-ed/-ing/-s) Etymology:concert (II) + -ize : to perform in concerts or recitals especially professionally < only 20 years old, yet he has been concertizing … for about a half a dozen years — Consumer Reports >