http://www.intuitor.com/hex/words.html http://www.intuitor.com/hex/words.html https://en.wikipedia.org/wiki/Tonal_system https://en.wikipedia.org/wiki/Tonal_sy

http://www.intuitor.com/hex/words.html http://www.intuitor.com/hex/words.html https://en.wikipedia.org/wiki/Tonal_system https://en.wikipedia.org/wiki/Tonal_system Do you have more links?