The brewing musical version of “Somewhere in Time” is on tap for a world premiere in May at Oregon’s Portland Center Stage.Scott Schwartz (“Golda’s Balcony,” “Tick, Tick… Boom!”) will helm the show, with John Carrafa (“Urinetown”) to choreograph. Shepherded by producer Ken Davenport (“Altar Boyz,” “Godspell”), the time-travel romance has been in development for a few years, and the creative team has shifted since its initial phase of development. Composer Doug Katsaros and lyricist Amanda Yesnowitz are penning the songs; Canuck composer Leslie Arden had previously been on the docket to write the score. Davenport is now credited as sole book writer, when Richard Matheson, who penned the novel on which the tuner is based, was initially announced as co-writer. It’s unusual for a producer also to be a member of a show’s creative team, but Davenport has done it in the past, co-writing and helming “Miss Abigail’s Guide to Dating, Mating and Marriage” and co-conceiving Off Broadway longrunner “Altar Boyz.” “Somewhere in Time” reps the first title by Matheson to hit the stage. Scribe’s work has spawned a number of movies including “I Am Legend,” “Duel,” “Hell House” and “Stir of Echoes”; 1975 novel “Bid Time Return” served as the basis for the 1980 Universal pic “Somewhere in Time” that starred Christopher Reeve, Jane Seymour and Christopher Plummer. Creative team for the Portland stage version includes Alexander Dodge (sets) and Jeff Cone (costumes). Show begins previews May 28 ahead of a May 31 opening, with casting still to be set. Future plans for the tuner have yet to be locked in.