From the recording 462*5=231*xy(2) First Movement

462*5 = 231*xy(2)

462 Strings, 3 Movments, 231 keys, xy(2 Hands)
Two Disklavier pianos 2 players
3 movements

65 keys with 3 strings per note
13 keys with 2 strings per note
10 keys with 1 string per note