This work is available from Boosey & Hawkes
for the UK, the British Commonwealth, the Republic of Ireland, South Africa and the Western Hemisphere (including but not limited to the USA, Canada, Mexico, Central and South America).
Workers Union was originally written for the orchestra De Volharding (Perseverance), in which I myself figured as a pianist at that time.
This piece is a combination of individual freedom and severe discipline: its rhythm is exactly fixed; the pitch, on the other hand, is indicated only approximately, on a single-lined stave.
It is difficult to play in an ensemble and to remain in step, sort of thing like organising and carrying on political action.