The rule is that (1) a party has reasonable grounds thinking that the other party will materially breach the contract, then: (2) that party may demand adequate assurance of performance, and (3) if is reasonable to do so, (4) it may suspend its performance.
Of course, in 1891, after a severe snowstorm, it may have been impossible to communicate with the musicians. Modern communication technology makes an inability to communicate much less likely.
As with UCC ยง 2-609, courts may waive the requirement of the demand if adequate assurance of performance if the circumstances make it clear that insecure party will suspend its performance until it receives adequate assurance that the other party will perform.