It’s an Alfred Adult Piano Course with some songs with words, piano accompaniment and chord symbols. Do I follow print and have a word line (in Grade 1), the chord symbols underneath, then a 2-parallel piano accompaniment? That’s a 4-line parallel.
Since this is a piano lesson book, I would braille the lyrics in poetry format (with contractions) before the music, then use a three-line parallel for the piano, with the chord symbols in the third line. I’d align the chord symbols with the measures, but not try to align them with the bass notes.