With regard to your question concerning the use of music in
the Nineteen Day Feasts, he wishes you to assure all the friends that he not
only approves of such a practice, but thinks it even advisable that the
believers should make use, in their meetings, of hymns composed by Bahá'ís
themselves, and also of such hymns, poems and chants as are based on the Holy
Words.
- Shoghi Effendi (From a letter dated 7 April 1935, written on behalf of Shoghi Effendi to
an individual believer; The Compilation of Compilations, vol. II, Music)
