the actual computation was left as an exercise for the reader, but the issue is not the length of the scales, it is how they can be combined. take 10 notes and

the actual computation was left as an exercise for the reader, but the issue is not the length of the scales, it is how they can be combined. take 10 notes and combine them in 16 ways. two small numbers, but how long to count to all 10^16 possiblities? or rephrased: how many days in 10 quadrillion seconds?