YouTube is creating an online orchestra.

The goal of the YouTube Symphony Orchestra is to create the world’s first collaborative orchestra featuring musicians from all over the world. It’s open to both professional musicians and new talent. To audition, musicians need to upload two videos of themselves performing specific works: One is a new piece by “Crouching Tiger, Hidden Dragon” composer Tan Dun; the other is one of several public domain works whose scores are posted on the YouTube Symphony site.

The deadline for video submissions is Wednesday.

The top finalists will go to New York in April to perform at the YouTube Symphony Orchestra summit at Carnegie Hall with conductor Michael Tilson Thomas. Winners will be selected by a panel of judges that includes representatives of the London Symphony Orchestra and other music experts.

Other audition videos submitted will be shown at the live event. YouTube visitors can watch them online.

Other videos posted on YouTube are designed to help musicians who are interested in this project. Two feature composer Tan Dun, and there are video master classes conducted by members of the London Symphony Orchestra, who offer tips on how to approach playing his piece, along with advice on auditioning.

Info: youtube.com/symphony