Okay, let’s compare the varieties you listed one by one.
The most commonly used material for making flutes is bitter bamboo. The characteristic of bitter bamboo is that the tube wall is relatively thick and the bamboo joints are slender. Under normal circumstances, the length of one joint is enough to make a flute. Of course, the possibility of connecting copper is not excluded. This kind of bamboo can be said to be a natural material for making flutes, with bright and clean sound.
The second is Zizhu. Purple bamboo is obviously not ideal for making flutes - the tube wall is thin and the bamboo joints are short. It would be perfect for making a hole flute, which has a long aftertaste and is suitable for expressing a deep and bleak feeling.
Other commonly used ones are Phoenix tail bamboo and Xiangfei bamboo. The texture of phoenix bamboo is close to that of bitter bamboo, but its timbre is slightly inferior to that of bitter bamboo. Xiangfei bamboo is commonly known as spotted bamboo. It has brown markings on it and is very beautiful. In terms of sound, it is also quite good. And Xiangfei Bamboo is very light - probably because the tube wall is relatively loose.
The next step is wood. Commonly used hardwoods include sandalwood, rosewood, ebony, walnut, etc.
The characteristic of hardwood is one, good quality. No matter how much you play or mess with it, it is not easy to break a wooden flute. The friend upstairs said that ebony is easy to crack, which is pure nonsense - there is only one explanation, the ebony he bought is definitely fake. I have been blowing an ebony bawu for four years. I have dropped it many times, bumped it many times, and even used it as a weapon. No cracks so far. As for the sound - you have to believe that flutes are made of bamboo. In other words, only bamboo flutes have the most authentic charm. It is true that a flute made of hardwood is by no means inferior in tone, but after all, it is not the pure charm of silk and bamboo. Of course, if you are not a professional player, it is not a bad idea to use hardwood flutes - in terms of longevity and quality, one is worth five. Of course, the price is also very considerable - a sandalwood flute costs more than 300 yuan, and red rosewood and ebony are also more than 250 yuan. In comparison, the price of bamboo flutes is too cheap.