Tyson studied from 1953 to 1957 at the Institute of Psychoanalysis in London and was involved in the complete edition of the works of Sigmund Freud ( 24 volumes, 1953-1974 ) involved. From 1960 to 1967 he studied medicine at the University College Hospital Medical School. Later, Tyson was a musicologist and was a Senior Research Fellow of All Souls College, Oxford and a Fellow of the British Academy. He made himself especially with his study of the Mozart autographs a name, in which he detailed the watermark examined in the paper used by Mozart and was thus able to develop precise dating of some works. The book also contains some of Tyson's other discoveries, including the authentic cadence of the A -major Rondos for Piano and Orchestra, K. 386, which was previously known for piano solo by Cipriani Potter only in a completed version and in 1837 appeared in print. By Tyson was also known that the usual version of the second movement of Mozart's Horn Concerto in D major KV 412/514 fulfillment in truth only after Mozart's death by his pupil Franz Xaver Süßmayr.
In addition, Tyson issued a remarkable series entitled Beethoven Studies. Similar to Mozart, his main interest was the watermark of the paper and the investigation of Beethoven's autographs. Of great importance are his sketches Researches. Before Tyson intensely turned musicology, he was from 1968 to 1970 in Oxford lecturer in psychopathology and psychology.
- The Authentic English Editions of Beethoven, London 1963
- Thematic Catalogue of the Works of Muzio Clementi, Tutzing 1967
- Beethoven Studies, London 1973ff.
- Mozart: Studies of the Autograph Scores, Cambridge 1987
- Watermark catalog. 2 vols Barenreiter, Kassel 1992 ( New Edition of the Complete Works / Wolfgang Amadeus Mozart; Ser 10, 33 plant group, Dept. 2. ).