Leon Waves talked about a chord so big, it is SEVEN octaves, THREE pairs of hands to play it, and it nearly covers up the whole piano. It is called a... Cmaj21x47#45x43#41x39#37#35#33#31#29#27#25#23#21#19#15#11 And only SEVEN chords can fit in an 88 Key Piano. Amaj21x47#45x43 Bbmaj21x47 Bmaj21x47 Cmaj21x47 C Dmaj21x47 Ebmaj21x47
The link about more of that chord and the lydian scale is in here. https://www.youtube.com/watch?v=HeTygKpi6pI
