unison is an adjective that refers to a set of sounds that have the same height orthe same frequency. It is what has harmony, which is unisonous, uniform.
A unison is that which has the same sound as the other, which has the same number of vibrations and which produces a unique sound.
The expression “in unison” means what happens together, where the intonation is absolutely the same. It is a sound that is played by several people at the same time. E.g.: "All shouted in unison."
figuratively, unison is what happens at the same tone, at the same time, with the same consonance. Ex.: "The battalion marched in unison."
"Unison" is the English expression that means "unison". Ex.: "We could achieve more by joining force and speaking more in unison". (We could achieve more if we join forces and speak with one voice).
musical unison
In the context of music, unison is the absence of an interval between two sounds emitted simultaneously, it is the same sound, or exactly the same note played by more than one transmitter, or more than one voice singing the same notes at the same pitch level, sounding at the same time. Music sung in unison is called monophonic.
While unison is represented by the same sound, the canon is a musical form based on imitation, that is, when a melody is played in two or more different parts, repeating itself indefinitely.
