Composers in isolation are taking their chops to Twitter with the idea of raising dough for furloughed Broadway workers.

Musical megastar Andrew Lloyd Webber started the trend Thursday, playing the show-stopping “All I Ask of You” from his “Phantom of the Opera” musical.

The cooped-up Twitterati were tickled by Webber’s tinkling of the ivories.

“I didn’t think I’d ever get such a response to this little tryout! Here I am in my own self-isolation,” Webber captioned the video, which was interrupted by his dog.

“Hamilton” creator Lin-Manuel Miranda replied by giving an early birthday shout-out to the soon-to-be-71-year-old.

“It’s almost your birthday and you give US gifts,” the star producer tweeted, prompting Webber to challenge him to a play-off.

Miranda later posted a video of himself playing “Everything’s Alright” from Webber’s “Jesus Christ Superstar” and asked fans to donate to Broadway Cares, which is raising emergency funds for Broadway workers left jobless by the COVID-19 outbreak.

I didn’t think I’d ever get such a response to this little tryout! Here I am in my own self-isolation. The song that came out on top was ‘All I Ask Of You’ – ALW pic.twitter.com/NCSujNwBPd

— Andrew Lloyd Webber (@OfficialALW) March 19, 2020

As of Saturday, the group had raised $586,432, nearly 60% of its $1 million goal.