Tonara, a sheet-music reading application for the iPad, launched today at the TechCrunch Disrupt conference in San Francisco.

Musicians download sheet music to the free Tonara app by purchasing sheet music from the company’s in-app store. The musician can then set their position in a song and begin playing along. The app listens the music as it’s being played and the sheet music moves along with the song’s timing, automatically changing pages at the right time.

“A Kindle for sheet music needs three things — best in class music scores, iTunes style sheet music scores and technology that listens to performers,” said Tonara chief music officer Ron Regev. “For the first time we have music that listens to you and knows that you’re playing.”

The application detects what notes you are playing and automatically follows along on the music sheet. It works for single instruments and for several musicians playing at the same time. The company’s plan is to make money by selling sheet music through an iTunes-like store. Tonara is in advanced negotiations with publishing companies that will include music from other popular artists.

Tonara will also likely license its music detection and tracking technology out to other sites, such as social networking sites, Regev said. Tonara is based in Tel Aviv-Yafo, Israel. It was founded in September, 2010 and has raised $750,000.