Support for 432Hz Tuning (Retune + Generation Option)

Summary Support 432Hz tuning either by retuning an existing song or generating new songs directly in 432Hz. User Need Some musicians prefer 432Hz over the standard 440Hz tuning for creative or personal reasons. They would like the ability to: • Convert an already generated song from 440Hz to 432Hz without altering lyrics or composition • Generate new songs using 432Hz tuning from the start Suggested Features • Add a “Retune to 432Hz” option for completed songs • Add a tuning parameter (440Hz / 432Hz) in the generation settings Why This Matters This would give users more control over the musical output and support different creative preferences and workflows.