22 H. W. Poole on Perfect Harmony, etc. 
three double columns arranged in like manner. In each double 1 
column the figure following the letter shows how many time 
this letter is — or flatted. We read |14\C 2#| “signatu 
14 sharps, key-note Cx” (C twice sharped or double sharp 
cia 4#| is eee 30 sharps, key-note Dx *” (quadrup 
ae Each of the 58 notes is approximate to the six whic 
appear in the same horizontal line, and these are the sounds: 
For example, if we divide t vals, 
Re 6, the first note of the table—which see—will serve as 2 Me : 
es. And by the division into grou inte 
coincidences appear. At the bottom of the first column of k 
AppITIoN To § 30.—The perfect sevenths of the major key, Abb” to F’ 
answer for those of the minor key, g” to e#’; and the total of pipes in 
the octave will be 67. 
* Notes several several (ase manne or flatted always bear to each other the same ré- 
lation as as respects these signs. The thirds of ©, F, and G on chromatic 
ms as theit roots. Thus the third of C ise; of Ci, e@; of Cxx But the 
of D, E, A, and B have one sharp more: the third of Dis f@; of Dxx, 
one a 
