I always really dug Jan's voice. It was so warm and smooth. She sang the first verse of "Sunshine Day" where they are auditioning for the Saturday morning TV show. I know that Marcia was probably more professional and technically proficient as a vocalist, but Jan's voice had a unique quality.

Actually, even Cindy was not bad as a singer. In fact, I liked all of their singing voices. Except for Peter of course. He's the only one who didn't sing at all. (Chris Knight admitted to being the only one without musical talent.)

Yes Jan had a unique sounding voice. I always loved The Bradys singing.
Especially the Variety show they did.

Jan did have a very nice voice.

Jan was always one of the sweetest Brady daughters.

:trio Jan had a very nice Voice