4-

4D

CPentadecachoꝛdum enarnonium conſtituere.

Pꝛoſlambanomenos 2 A— Hypate hypaton bTonus b— Parhypate hypaton cdieſis.—— Tichanos hypaton d dieſis d— Hypate mefon e ditonus 6—— Parhypate meſon fdieſis f.—

Tichanos meſon g dieſis g— Weſe p ſditonus 5—

Parameſe diezeugmenon lꝛ tonus Trite ſyn. dieſis k—

Trite diezeugmenon dieſis Paranete ſyn. dieſis 1— Paranete diezeugmenon m dieſis Mete ſyn. ditonus m— Mete diezeugmenon n ditonus n—— Trite hyperboleon oſdiefis 5— Paranete hyperboleon p dieſis 7— Nete hyperboleon q ſditonus R

¶ Tuius cõpoſitio perfacilis eſt.facio enĩ vt in ceteris pꝛecedẽtibus a ad b interuallũ toni.etaade diapẽte.⁊ b ad d facio ſemitoniũ minus.et diuido choꝛdã c in medio differẽtie b add erit ergohade dieſis tetrartemeria atq; quadꝛipartialis pariter et c ad d dieſis.ſed per quartam ſecundihuius het latioꝛ illa vero contractioꝛ neq; per triceſunãſecundam eiuſdem ſemitoniũ minus in duo equa certo cõſtitutoq; numero diuidi poteſt.et a ad e diapente.ſubſtracto igitur a b tono relinquitur b ad eelle diateſſaron.et cum diate ſaron ſemitoniũ minus ⁊ duos tonos cõplectatur: et b ad d ſit lemitonlun minus:relinquit᷑ igitur d ad e eſſe ditonus.erit igitur b cd ehypates hypaton parhypates hypaton lichaniq; hypatõ et hypates meſon tetrachoꝛdũ:per b e:c d: et d c dieſim ⁊ dieſim et ditonũ pꝛocedẽs ꝑ djffinitionẽ in enarmonico gñe diuiſum. Similiter cõſtituas e fꝗh tetrachoꝛdũ meſon faciedo⸗ ad h diapaſon.et e ad g ſemitoniſ minus.⁊ partiẽdo mediã dꝛĩam per f itavt e fetf gſint duedleſes Nã ab ah cõſonantia diapaſon ſubducta a e cõſonantia diapẽte: relinquit᷑ e h eſſe diateſſarã etce g ſit ſemitoniũ minꝰ: igit᷑ gh erit ditonus.⁊ cũ e f et fg ſint due dieſes ⁊ gh ditonꝰ.g hec tetrachoꝛdi partitio in genere etarmonico facta cõſpicitur. Et facta h meſe ad netẽ diſiunctarum diapenteta neten hyperboleon diapaſon:et choꝛda meſe a parameſe tetrachoꝛdi diſiunctarũ tono diſclula: p inde ac pꝛoſlãbanomeno ab hypate hypaton:partteris tetrachoꝛdum diſiunctarũ lelmnythe den trachoꝛdũ hypaton.et tetrachoꝛdum no p qhyperboleon excellentiũq;:vt e fꝗh tetrachoꝛdũ melon. tetrachoꝛdũ autem cõinuctarum hlꝛl m partieris vt tetrachoꝛdũ meſon et id quoq; facilecſt.

¶ Pentadecachoꝛdi enarmonici:numeros colligere.

Pꝛoſlambanomenos

15824

AD A 113824 Hrpate hypaton b l I22881 Tonus 12128 8 Tonus Parhypate hypaton 1 11664 Semi mi.] 119 75 dieſts Lichanos hypaton dl 10368 Tonus 118 4 d diells Hypate meſon e 1 2216 l ZTonus„2 16 ditonus Parhypate meſon f 8748/ Semimi. 39 82„diens Cichanos meſon AX lL 2722 5Sl TZTonus 74 8 Als Weſe— h l912 Tonus ſ 59 17 ditonus Parameſediezeugmenon 1e ſ144 ſ KTonus 14. 4 Lenu⸗ Trite diezeugmenon 1 l 5832 Semimi. SS gs dieli Paranete diezeugmenon iun[ 184 Tonus z8 32 dieſts b Eae ouan— n 1 4608 Tonus[45os ditonus TlichPelholeon 2[4374 ſSemimi.] 4.45 1 dlelis Paranete hyperboleon PH. 3888 Tonu 9 ſ 43 7 4 dieſis — 4.1415 Lonus—; 45 6 dlons