Update: August 2018 - Note from Wolfgang Sheidt:
"By order of the court I am obliged to revoke reproaches and accusations against Thérèse Mahler and Jonathan Floril in my „Open letter“ from August 22nd 2014."
Full revocation published below.
Scheidt was invited to conduct a series of master classes as part of something called the Mahler Philharmonic Society.
Serious allegations of misconduct and even fraud surfaced relating to the organisers of the little-known event. Several disgruntled singers who were accepted into their 2014 Salzburg Voice Festival (no connection to the official Salzburg Festival) have outlined a litany of complaints against them.
The conductor has offered to help those affected by offering free master classes.