How does training for a broadway, or any theater singer differ from a conventional singer?

Are there even any differences? I'm asking because I remembered an eppisode of American Idol and he told a woman she had a voice for broadway. There is such a difference between a broadway singers voice and lets say regular singer. So i suspect there has to be different training. If there is please post, thanks so much

How does training for a broadway, or any theater singer differ from a conventional singer?getting late

Broadway or "musical theatre" singers generally have strong powerful and more often than not trained voices. It's also mainly about the style, I guess you could compare say Britney Spears with a typically "pop" voice trying to sing something like "Phantom of the Opera." Wouldn't really mix and it kinda goes the other way too.

I'm a trained "musical theatre" singer and I've always struggled to sing in a "pop" way as the style and the way you sing is totally different.

It all pans down to what style you are trying to sing and in what genre youre voice is suited.

How does training for a broadway, or any theater singer differ from a conventional singer?regal theater opera theater

The difference is the ability to project into a full house without amplification. It involves volume and tone, and it can be learned.
A singer for opera will have learned to sing in many different languages, hit notes right on the note, and learn trills, and vibratos. They learn to sing clearly so the people at the top seats in the theater understand them.

A singer for Broadway sings with less vibrato in their voice, and unless the show is about blues, hits notes right on the note. They also learn to sing so they can be heard at the back of the hall.

A popular singer, learns to use a microphone so they do not need a powerful voice. (If they have one they need to turn down their volume to get a good sound.) They also need to learn to slide into the note and bend the note rather than always hitting the note exactly. A popular singer also must know how to improvise on the song, if they are good. A popular female singer does not tend to use the highest notes in her range. (An opera or Broadway singer will when given a chance.)

An untrained singer sings to the best of there ability but unless she or he is a natural will not sound like an opera or Broadway singer.

(I'm an untrained singer with a tiny bit of training.)