Frescobaldi (software)
Frescobaldi is an editor for LilyPond music files. It aims to be powerful, yet lightweight and easy to use. Frescobaldi is free software, freely available under the GNU General Public License. It is designed to run on all major operating systems (Linux, Mac OS X and Microsoft Windows). It is named after Girolamo Frescobaldi, an Italian composer of keyboard music in the late Renaissance and early Baroque period. Frescobaldi is written in Python and uses PyQt for its user interface.