9780542998478). Woolhouse, W. S. B. (1835). Essay on Musical Intervals, Harmonics, and the Temperament of the MusicalScale, &c.. J. Souter, London. نسخة محفوظة 3 مارس
2009-09-11. Citron, Stephen (2001). Sondheim and Lloyd-Webber: The new musical. London: Chatto & Windus. ISBN:978-1-85619-273-6. مؤرشف من الأصل في 2019-06-01
of ca. 1500–500 BCE. Not just the actual words, but even the long-lost musical (tonal) accent (as in old Greek or in Japanese) has been preserved up to
pp. 31-33, "Tonal Functions of the Scale Degrees". Alexander Rehding, Hugo Riemann and the Birth of Modern Musical Thought, New York, Cambridge University
Huffington Post. مؤرشف من الأصل في 2009-02-03. اطلع عليه بتاريخ 2008-12-01. .Musical diplomacy as New York Phil plays Pyongyang, Reuters, 26 february 2008 نسخة