Symphony OS is described as 'Live CD Linux-based operating system, developed by Ryan Quinn, Jason Spisak, and Alexander Drummond. The distribution was dormant until 29 June 2011, when a new build was released (Developer Build 2011.7511)' and is a Linux Distro in the os & utilities category. There are more than 10 alternatives to Symphony OS for a variety of platforms, including Linux, BSD, Self-Hosted, Ubuntu and FreeBSD apps. The best Symphony OS alternative is Linux Mint, which is both free and Open Source. Other great apps like Symphony OS are Ubuntu, Debian, Fedora and Arch Linux.