Triple barrel
Triple tonum consists of three single tonum or a single tonum and a double tonum of Gregorian chant , which are on any same or different pitch , and represent a form of group neumes . When group neumes are combined, multi- group neumes are used .
Of the triple tonumen, only the Salicus in unison , in which two tones on the same pitch are followed by a higher tone, has no name of its own.
The most important triple tonums are listed below in alphabetical order and are only examples because of the variable intervals with regard to the pitch of the individual tones in the square notation :
| designation | Square notation | Notation St. Gallen / Einsiedeln |
|---|---|---|
| Climacus |  |
|
| Salicus in unison |  |
|
| Porrectus |  |
|
| Pressus |  |
|
| Salicus |  |
|
| Scandicus |  |
|
| Torculus |  |
|
| Trine | |
|
| Tristropha |  |
|
| Trivirga |
|
|