There were 1,140 performers last night in Valery Gergiev’s performance in Ljubljana, the town in Slovenia where Mahler landed his first job (see Why Mahler? for more)
That could be a record. Stokowski had 1,068 in Philadelphia in 1916 and Mahler himself a mere 1,029 in Munich.
Anyone done it bigger? Let me know, if so.
Here’s a report from Ljub by Branimir Profuk. Itis in Croatian. The headline reads: “Magnificient music sounded on the Congress square where Mahler himself was walking 130 years ago”. Google-translate can help with the rest.