North Cambridge Family Opera presents the American premiere of the family opera Flying High, music by Graham Preskett and book and lyrics by John Kane. Flying High is the story of a wildly successful but unhappy pop star and a band just starting out, and how they both seek fulfillment in the unscrupulous world of the music industry. The show features entertaining lyrics set to singable music in a variety of styles and is presented with side titles. It consists of two 40-minutes acts with an intermission and will appeal to audiences of all ages. The cast of more than 135 chorus members and soloists, split into two separate casts, is drawn from many Greater Boston communities and ranges in age from 7 to 85.