Synthesizer V is a revolutionary music production tool that uses a deep neural network-based synthesis engine to generate incredibly life-like singing voices. It has a customizable AI pitch generation, unlimited tracks, no core limits, VST3/AU plugin support, ASIO support (Windows), Jack support (Linux), Cross-Lingual Synthesis, AI Retakes, Isolated Aspiration Output, Vocal Modes, Tone Shift parameter, Microtonal Adjustment, MIDI keyboard support, Metronome, and Lua/Javascript scripting. This seems to be a ground-breaking tool.(You will need to translate the page from Japanese to your preferred language)