Tonara, the interactive sheet music app, has rolled out a new score synchronization feature for the iPad. In one of its biggest updates, the score synchronization feature currently allows musicians to review their practice sessions, and in the future, power stage management functions such as automatic lighting or supertitle changes at concert venues and even opera houses.

According to TechCrunch, the technology behind Tonara, combines audio signal analysis with proprietary algorithms that enables computers to understand notes in the fly or via recorded music. The app can also follow any number of notes played side by side on any number of different instruments, tracking the user's current position in the score, even if they make a mistake or changes tempo, and still turn the page at the right moment. It can also match any note in a score with the corresponding note in a session recorded on the app itself, so musicians do not need to rewind or fast forward through audio playback in order to find passages that they need to listen to or practice on.

Tonara has so far secured a total of USD 4.75 million including a USD 4 milion Series A round that was announced in July 2012 and is also a finalist at the 2011 TechCrunch Disrupt in San Francisco. Investors of Tonara include Carmel Ventures, Index Ventures, Lool Ventures, Eilon Tirosh and Rami Lipman