The music, for string quartet, is inspired by quantum-mechanical principles, running time about 25 minutes. The words up, down, quark, strangeness and charm are all quantum forces, or particles. The phrase, 'Quark, Strangeness and Charm' was the title of '70s rock band, Hawkwind's brilliant send up of famous scientists and their inability to conduct successful personal releationships - "To score, like you and me": "Did none of those astronomers discover - When staring out into the dark - That all a lady looks for in her lover - Is charm, strangeness and quark." Here are the four movements: