Medford musician Emily O'Brien is offering a workshop series, "Memorizing Your Music," presented via Zoom in three sections over six weeks. Concluding the series is a three-part Music Memorization Workshop on Tuesday evenings December 1, 8 and 15. In this group class, participants will select their own pieces to work on and Emily and participants will work through the process of memorizing together. Students will play for each other, and discuss successes and pitfalls they encounter in the process of…