"get to" in this context means "will be able to", or "are able to". It's not very different. I answer you. I get to answer you. The fact is the same - the difference is the emphasis on the fact that I managed to or somehow gained the possibility of (answering you) doing whatever it is. In your first example, I don't think there is any real difference. https://dictionary.cambridge.org/dictionary/english/get-to https://www.macmillandictionary.com/dictionary/british/get-to

Hi, but have some difference between: I hear you get to go to the concert. I hear you go to the concert.

Hey. Not sure what you mean by “if you hear me now.” It sounds a bit weird in English. You can say instead: “Can you hear me now?” (Asking if the person you are speaking to can hear you clearly) “Are you listening?” (A more bold way to ask if someone is listening. Not recommended you use unless you know the person very well (ex. a sibling) ) “If you hear me out...” (more similar to your sentence in structure. It’s similar to ‘are you listening’ but more of a request rather than demand. (Ex. If you hear me out on this new project, I promise not to ask you about it anymore. My project idea is...)) Part two of your question: “Get to” is more like giving permison to something for some reason Ex: 1. If I clean my room today, I get to go to the mall with my friends. (This is more like ‘I can’ in this sentence.) 2. You can do it, get to the finish line! (Here it’s more like ‘go’) 3. He always gets to go. (Here it’s plural. Here it’s similar to saying He always ‘is allowed to’ go.) Bonus example: 1. I hear you get to go to the concert. You are so lucky! (Hear in this case would be like ‘I was told’. Get to in this case is like ‘are allowed to go/ are going’) I hope this helps. Keep studying!