Theorem of the Day (April 4, 2026) : The Generalised Hexachord Theorem Source : Theorem of the Day / Robin Whitty pdf : https://www.theoremoftheday.org/MusicAndArt/Hexachord/TotDHexachord.pdf notes : https://www.theoremoftheday.org/Resources/TheoremNotes.htm#93 #mathematics #maths #math #theorem @Theoremoftheday