Latest Past Events
Concert of a Quartet from 432 Chamber OrcehstraTea house - Чайната ul. "Georgi Benkovski" 11, Sofia
423 Chamber Orchestra is happy to invite you to a concert with music palyed by the string quartet of the orchestra in a1 = 432 Hz concert pitch. The programme will begin with comparative presentation of the standardized concert pitch a1 = 440 Hz with the choosen by us a1 = 432 Hz concert pitch.