I did not finish this question off [at least in a coherent fashion]earlier

this evening...

I think the question should be:

When does(n*O)+/-f,+/-F [where "O" is 12, "f" is 5, and "F" is 7] result in

two numbers that are neither prime nor a product of primes >/= f and F?

Dan

-----Original Message-----

From: Joseph L Monzo

>I just noticed something I found very interesting(given my interest in the

importance of primes in music): In both the positive and negative methods of

linear mapping, the only significant MOS which does *not* have a number of

elements which is prime is that with 12.