These different permutations were called "perfect/imperfect tempus" at the level of the breve–semibreve relationship, "perfect/imperfect prolation" at the level of the semibreve–minim, and existed in all possible combinations with each other.
Estas diferentes permutaciones denomínanse "tempus perfecto/imperfecto" segundo a relación de breve-semibreve, "prolación perfecta/imperfecta" no caso da relación semibreve-mínima, existindo todas as combinacións posibles entre un e outro.