392 Opuscula. 
4 , & 5 f tertlce majoris terminos ) efficies numeros 8 , & id , 
quos inter li medium arithmeticum g colloces , extrema ma- 
joris toni obtinebis in numeris 8 , & 9 , toni vero minoris in 
numeris 9 , & 10 . 
SubtraSiione utimur, dum minus intervallam a majore au- 
ferimus . Exceflus autem hujus fupra illud (" qui differentia di- 
citur } intervalla exhibet , quac fequuntur . Exceflus terticz ma^ 
joris fupra minorem hemitonium minus affert ^ .-^ • Excefl!us 
tertiae minoris fupra tonum majorem hemitonium majus praebet 
9 8 
3 ;) " 48 • 4? • Eademque ratione exceflus hemitonii majoris fupra 
16 .• is ^^X'"^ 
minus profert diejis enharmonicum recentiorum ^^'^^^rii' ^^" 
128 : 125 
cefTus toni majoris fupra minorem gignit comma recentiorum 
-i— - . EJufdemque majoris toni fupra hemitonium minus ex- 
ceflus producit hemitonium maxim,um — ^ . Ac denique ex- 
*^ 8 ) 216 : 200 ^ 
27 •• 25 
ceflTus hemitonii maximi fupra diejts enharmonicum fuppeditat 
hemitonium medium 2; ) 3:^7^ • 3-^00 > ^^^e J/^^ enharmonici fu- 
81 80 
pra comma exhibet comma minus ^ . — — — — - . 
^ 5 J 10240 : lOi 25 
2048 : 2025 
Neque fuperioribus operationibus minus fbecunda inter- 
vallis eft ea , quae rationum compojltio vocatur . Etenim fi ter- 
tiam majorem^ & tonum majorem fimul componas , exiftet tibi 
s •■ 4 
quarta major -^~r~' quartam conjonam y & hemitonium ma- 
[6 
jus quinta defciens -^- 
15 
, quac falfa etiam dicitur . Compofi- 
"^* tis 
