Coba jelasin Ketiga – Median dari Skala major dalam bahasa melayu dong

Kelapan – Tonik (atau Oktaf)

Bower, Michael. 2007. "All about Key Signatures ". Modesto, CA: Capistrano School (K–12) website. (Accessed 17 March 2010)

Jones, George Thaddeus. 1974. Music Theory: The Fundamental Concepts of Tonal Music Including Notation, Terminology, and Harmony. Barnes & Noble Outline Series 137. New York, Hagerstown, San Francisco, London: Barnes & Noble. ISBN 978006401374 .

Kennedy, Michael. 1994. "Key-Signature". Oxford Dictionary of Music, second edition, associate editor, Joyce Bourne. Oxford and New York: Oxford University Press. ISBN 0-19-869162-9.

Yamaguchi, Masaya. 2006. The Complete Thesaurus of Musical Scales, revised edition. New York: Masaya Music Services. ISBN 0-9676353-0-6.