Three short articles about music braille are presented for braille transcribers and teachers of the visually handicapped. The first article focuses on common in-accord-related errors in braille music and provides a definition of and information about accidentals and in-accords and doubling and in-accords. The second article deals with the rules governing grouping as described in the "Revised International Manual of Braille Music Notation 1956." The third article provides information about when and where to use slurs and ties. (LH)