
In other styles, it can sometimes be a modeling show where some singing also goes on. In opera, it is all about bringing the goods vocally. And I don’t think the opera audience or critics judge an opera singer based on their weight, which is very contrary to singers in other musical styles.

With opera singers specifically, there is a tradition of rich food and wine in opera culture, just like there is a tradition of marijuana in the cultures of some other musical styles. The kind of singing that is done in opera is very, very athletic. If you are going to sing a 3 hour opera, you had better have some extra weight on you at the start, because you are going to lose multiple kilos of weight during your performance. The only way that I know of that weight has to do with singing is about endurance. I'd really like to hear about scientific research regarding this though. Further I've sung with rather tall tenors.) For example the bass singer Anders Jalkéus of the á capella group The Real Group I believe is at most of average height but he can sing several notes in the contra octave below C2 and that's definately below average. Although there is likely some correlation between body length and vocal folds length it's not a one to one relation. (Regarding voice range I'm fairly certain that the size or length of the vocal folds constitutes the main factor for what singing range a person has. I don't know but I don't think it is a very important factor for your singing ability.


Regarding air supply there is certainly some correlation between body height and lung size. I'd guess that internal body construction and musculature is more important than actual external size. So if there is a correlation between body frame size or body weight and singing voice power the correlation coefficient is probably not too large.
DOES YOUR VOICE CHANGE WHEN YOU LOSE WEIGHT FULL
However I've heard tiny (short and thin) women sing with a strong powerful loud voice with a full rich timbre that would amaze most people, and I'm sure there are large people with really weak voices. I cannot refer to any scientific research.
