I have Mercury in Taurus in my 10th, and my voice is my biggest asset in my music career..It's what I'm known most for I think.
My last girlfriend had her Mars conjunct my Mercury in Taurus. Mars rules what makes a male attractive to a woman and one of the 1st things she said was that I have an "attractive voice"..
So I think a woman with Sun or Venus in Taurus will have a voice attractive to males, and if she has Mars in Taurus, then she'll be attracted to men with a "manly"(mars) voice..
For example ever heard Billy Dee Williams voice? He also has Mercury in Taurus. Astrology doesn't lie, a prominent or well aspected Taurus will have either a great speaking, or singing voice. It may even be a good "writing voice"!(poet)
But like I said, my voice always did something to my girl, and I just realized why as I studied our synastry. Oddly enough, her mars in taurus makes her voice sexy to me too! Her mars stimulates my mercury, so mentally its a turn on.
As a Mercury inTaurus, I can also testify that the vocal sounds of lovemaking is the biggest turn on with sex! Since Venus rules both, I think people underestimate the importance of voice in sexual attraction/stimulation.
One more thing, my ex was also a one-time phone sex operator! Taurus definitely rules this area, esp. if Mars, Mercury, or its ruler Venus is there. I Even had a relationship with a Taurus sun woman that was totally based on long-distance phone conversations, I found her voice the sexiest thing about her...
Long story short, if the Taurus or Venus is in 10th, that shows a great singing voice, or at least some potential for a career in singing, or being known or respected for their voice, whether people are aware of it or not. If you have Venus in Taurus, by all means sing, and Venus in Gemini I believe could have a nice set of "pipes"(gemini and mercury ruling lungs, windpipe,"wind"=air)