One difference between a renaissance mass and a motet is: a mass is sung unaccompanied, a motet has instrumental accompaniment a
mass has only step-wise melodies and unmeasured rhythm. both the melody and rhythm of a motet are more irregular. a mass is always based on a specific text that is part of the liturgy of a given day. a mass is sacred, a motet is secular
One of the main differences between the renaissance mass and a renaissance motet is that the mass is always based on a specific text that is part of the liturgy of a given day. Motet is not connected to some specific text that is part of the liturgy but is also like the mass usually sacred.
