Rookanga Digital is a brand that offers 1Chart, a powerful and flexible app bringing the Nashville Number System to the iPad. With 1Chart, musicians can easily create professional-looking music charts. The app allows users to enter and display chords in number or letter format, toggle back and forth at any time, and notate complex rhythms and dynamics.

It also provides tools like endings, repeat signs, and other symbols to build arrangements. Additionally, 1Chart offers features like the ability to copy and paste chords, measures, or entire sections for quick charting, support for chord inversions and various chord qualities, and the option to share charts as PDFs or editable files. The app is designed to make charting faster and easier, with recent updates including intelligent key changes, modulations, a two-column format for more content display, performance mode, and the ability to export and import notebooks.

With 1Chart, musicians can streamline their workflow and keep all their charts conveniently organized on their iPad. Explore 1Chart in the App Store to experience the world's most convenient charting system