Precise Temperament Tuning for Entonal Studio - Two .scl files for the most harmonic ancient tuning system made of two sets of tunings, one around 432 HZ and another at 528 HZ. The two tunings complement and work incredibly together. These are the two most harmonic tuning systems you can come across as calculated by Dr. Robert E Grant. The .scl files will be compatible with any program that accepts it. This was made specifically for Entonal Studio but can work for any other program that accepts .scl files for tuning.