Latvian Library for the Blind
Organisation with braille music available to loan, purchase or download.
Membership: is free of charge
International: books in Latvian are sent to members abroad.
They do not have a braille music collection with an online catalogue. The pieces for music in the collection were printed more than 45 years ago and are historical ones. You are advised to contact the Library of Congress in Washington, National Library Service for the Blind and Physically Handicapped.