Dieter Schrade's Tuned Crystal Chimes are tuned to according to A at 432 Hz. If you prefer the 432 Hz standard for tuning, all power to you! It's only been since the middle of the 20th century that 440hz was standardized globally. Maybe your ancient vibe grooves with different tunings!
Add these chimes to your spiritual toolkit and start using them in your sound baths and musical meditations. They are perfect with other 432 Hz tuned sets and instruments.