So, I came across a description of Tetrabiblos, or in Latin Quadripartitum


So, would this be a tractus in Arts Liberales, 4 tractus in Artes Liberales or a summae in Artes Liberales? Or does it include some knowledge of Philosophae as well?

It could be a collection of summae in artes liberales with increasing levels and decreasing qualities, or a summae with three tractatus...
or more simply a summae whose quality is 1/4 the point total of its level. For example Level 5 quality 19