- MUSIC BRAILLE CODE, 2015 by Braille Authority of North America
http://www.brailleauthority.org/music/Music_Braille_Code_2015.pdf - Introduction of Braille Music by Royal National Institute of Blind People (RNIB)
https://www.rnib.org.uk/practical-help/reading/braille-and-moon-tactile-codes/braille-music
