Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
Sensa is not an operating system, is a work environment compatible with Android © 4.4.4, Firefox OS ©, Linux Ubuntu 12.12 ©, MacOS Classic 7 ©, MS -DOS © operating systems, and Microsoft Windows 8.1 ©; whose distribution is free, and with source code available under GNU GPL 2.0 license .
KLAVAR! is porting to MS Windows a graphic music sequencer/notation program based on the easy-to-read KLAVAR music notation, without clefs, sharps, flats or accidentals. It was originally written in GFA Basic for the Atari ST. Earlier releases were also targeting Apple Mac OS X and GNU/Linux operating system but the effort had to abandoned due to the uncertain future of the development tools used.
Full-features Integrated Development Environment (IDE) containing built-in cross assemblers for a variety of processors. Will contain built-in emulators and features specific to software development on certain computer systems and consoles.