It is apparently near impossible for the human mind to randomise. Apple, (iirc) had a randomiser on a music program that humans couldn't accept, and had to introduce another to re randomise. A random selection of six numbers from fifty could give you 1,2,3,4,5 and six ... or 45,46,47,48,49 and fifty - but the mind wouldn't accept them as being random. In the case of music people couldn't accept that a series of consecutive tracks from an album could be random. Having tried a random spacing of nine downlighters, I know how difficult it is to get "random" to look right. Nice one! :lol: