Apps similar to ossia score include Chataigne, which is free and open source. Other options are VZX Music Visualizer, Vezer and IanniX. In total there are four apps like ossia score for Mac, Windows and Linux.
Chataigne is a free, open-source software made with one goal in mind : create a common tool for artists, technicians and developers who wish to use technology and synchronize software for shows, interactive installations or prototyping.
France
EU
VZX Player generates awesome audio reactive graphics in real time from any audio source - music player, youtube, microphone, line-in etc.
SwedenEU
Vezér is a timeline and control software for audiovisual artists. It enables control and synchronization of any MIDI, OSC or DMX enabled environments - real-time video software, lighting rigs, etc. - through the use of timeline based automation.
HungaryEU
