My apologies for the delayed response! The National Library Service for the Blind and Physically Handicapped has an extensive library of music braille scores, instruction books, textbooks and orchestral scores. If you go to http://www.loc.gov/nls you will see a link to the music department on the right hand side. Once there, you can search for the exact book that you're looking for. (I did a quick search and found the Essential Elements instruction books for percussion and strings, but not B-flat clarinet.) However, it may be wise to call the office as well since it may be currently in production as well. Hope this helps!