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. (From a letter dated 7 April 1935, written on behalf of Shoghi Effendi to an individual believer; The Compilation of Compilations, vol. II, Music)
