this is an easy way to test that the scripts to build sonic py on master work, in requires vagrant to be installed:
vagrant init ubuntu/xenial64; vagrant up --provider virtualbox
vagrant ssh -c "git clone https://github.com/samaaron/sonic-pi.git; cd sonic-pi/app/gui/qt; ./build-ubuntu-app"
as it is the script will ask for confirmation to install the packages, you can just hit enter to install them, adding -y to apt-get install would do it automatically but I don't know if it's the intended way.
also it may ask for confirmation to add ssl certs when cloning supercolider.