Change ChordName temporarily

[Jesús Guillermo Andrade]

Dear Friends: The use of the cuatro instrument in Venezuela is  
traditional for tha last three centuries. One of the ingrained customs  
here is to name certain chords as another, based on their sonority.  
For example, a C dominant 7 is never regarded as a true Eb-Dominant  
Seventh. So... how complicated would be to change the name of the  
chord, despite the notes included in it?

Thanks