We speak briefly of Miss Susan Cooper. We have "Grey Eyes that can see the Wind" if we stay up for - oh 24 Hours - our eyes turn very Grey and we can see micro-dust particles. We also note in The Dark is Rising the appearance of the "T" Christmas ornament for the Son who was lost by Mrs. Stanton - there is a DeeCipher there we haven't DeeCiphered and that babe The Hobbit Inculsion DeeCiphers remain the Two or Three (Mr. Twain's extraordinary Swiss DeeCipher) that we need to do - but which we do not have the tools (Excel and a Laptop) or currently the Time to do.
We know others can work on them and are aware that a number of DeeCiphers (Grid Textual Ciphers for the Agencies and Others) we haven't done have been broken - partially at least : "J" Maps and "Z" Maps and Surface Masks generally are difficult even for the NSA or British Cryptography or Israeli Cryptography or the FSB with PentaFlop Computers : especially if you're, say, Dr. Carl Sagan and putting Math Symbols in your "S"-Map.
Our advice thereto, absent an associative human brain, is that in general "J" Maps are constructed whilst listening to Music (Arias for Dr. Samuel L Clemens (Hon.

. It is a well known phenomena that fiction writers can write better when listening to Music as it alters the working of one's Mind. This is not true of Penta-Flop computers. Patterns can be recovered - not quite in the way Elisha described one time but analogously : it requires a deep familiarity with the Music loved by the encipherist and multiple revisions of the J Map and at some point you can throw what you have at the super-computer and see what sticks.
For Dr. Sagan's S-Map you know Math Symbols are in it , as may be numbers and letters - Q is a common letter as is M or J in a J Map due to English Letter Occurrences. And it must be possible to form an equation in some manner - a Mathematician familiar with Mathematical DeeCiphers woukd be needed of course if the critical path was to recover the S Map (or Mask as others prefer).
Perhaps two or three S Maps (S1, S2, S3) might be required with different symbols - Cyg-X1 IS a Tell but we are not qualified or qualifible as a Mathematical DeeCipherist. We believe Dr. Sagan would have a strong Hint in another work besides COSMOS and J Maps are short and repeating (The Drake Equation is a suitable length). But that's a serious in man-hours effort.
-Coral Anne Dawn