The art of music must be brought to the highest stage of development, for this is one of the most wonderful arts and in this glorious age of the Lord of Unity it is highly essential to gain its mastery. However, one must endeavour to attain the degree of artistic perfection and not be like those who leave matters unfinished. (‘Abdu’l-Baha, The Compilation of Compilations, vol. III, The Importance of Arts in Promoting the Faith)