It depends on whether they play lever harp or pedal harp, what training they have already had on other instruments, what their strengths and weaknesses are, etc. I start everybody with four fingers on the strings from the first lesson, and we get scales underway immediately. I make sure they start each lesson with technical exercises, then we get to the pieces, (unless they are already really technically competent). Whichever music you use, the pieces should be engaging musically and mentally, and should challenge the student enough to make them progress, but not be so difficult as to cause frustration. Sometimes you will overestimate a student’s ability or amount of practice time, and then it’s okay to back up and choose something simpler for the recital. For beginners, it’s good to get them a book of progressive exercises and pieces, with lots of commentary and pointers that they can use as a reference. There are good lists of pieces to choose from in the various Syllabuses (Syllabi?) from the Royal Conservatory of Music, or the Associated Board of the Royal College of Music, etc.