Anthony Palmer, who teaches music education at Boston University, has said that music with "absolute authenticity" is performed (a) by and for members of the culture; (b) in a typical setting, as determined by the members of the culture; (c) with instruments specified by the creator(s) of the music; and (d) in its original language.[ 8] Inarguably, and as Palmer recognizes, attaining this level of authenticity is impossible in a school music program (unless we consider "school music" residing within a unique culture of its own). In school, music is separated from its primary source many times over. Music is passed from its primary source (composer, grandmother) to an intermediary (arranger, performer, notation, recording) and channeled through a publisher or presenter to the teacher and finally to students. To confound matters, there are variants of melodies, lyrics, dances, games, and performance styles.