Last time I used Rust to build a music player, the resulting audio quality was much worse than my C++ version. I'm sure these new kids on the block ("Rustaceans" or whatever they call themselves) know what they are doing when building web applications and CLIs, but when audio quality has to 120% of the original sound, nothing beats true and tested C++. I cannot explain how or why, but programs made with C++ just sounds better, fuller and more authentic than programs made with other languages.