Screw bell
* Pros:
* Allows you to adjust the intonation of your horn by lengthening or shortening the bell
* Can help to improve the horn's response in different registers
* Can make it easier to play certain notes, such as high notes or notes in the low register
* Cons:
* Can be more difficult to tune than a fixed bell horn
* May not be as durable as a fixed bell horn
* Can add weight to the horn, making it more difficult to hold and play
Fixed bell
* Pros:
* Easier to tune than a screw bell horn
* More durable than a screw bell horn
* Lighter weight, making it easier to hold and play
* Cons:
* Does not allow you to adjust the intonation of your horn
* May not be as responsive in different registers as a screw bell horn
* May make it more difficult to play certain notes, such as high notes or notes in the low register
Which is better?
As mentioned, the best choice for you will depend on your individual needs and preferences. If you are looking for a horn that is easy to tune and play, and you don't mind the lack of adjustability, then a fixed bell horn may be a good choice for you. If you are looking for a horn that you can adjust to your liking, and you are willing to put in the time to learn how to tune it properly, then a screw bell horn may be a better option.
Ultimately, the best way to decide which type of French horn is right for you is to try out both types and see which one you prefer.