San Franciso Symphony has taken the lead, cancelling the whole of April and beyond.
Due to an extension of the Public Health Order prohibiting gatherings of 100 or more persons to slow the spread of COVID-19, there will be no concerts or events at Davies Symphony Hall through April 30.
Houston Grand Opera has called off its two spring productions and it fundraising opera ball. But it has pledged to take care of freelancers:
HGO is taking the lead in helping defray the impact that this cancellation has on our community of artists, musicians, stagehands, and staff. From ushers to star sopranos, HGO is committed to the livelihood of all those involved in producing great opera in Houston. We are asking for you to donate the cost of your tickets from the spring rep to help us offset the losses of those involved.
Gilmore International Keyboard Festival has cancelled halway into May.
South Dakota Cello Day on April 30 is off.
Bizarrely, the Queen Elisabeth Competition in Brussels sent out a note to competitors this weekend saying nothing has been changed and they are expecting to go ahead in May. So they should just go ahead and book flights?