Ton de Kruyf was born on October 3rd, 1937 in Leerdam.
He studied composition with Wolfgang Fortner in Heidelberg. He also attended the Internationale Ferienkurse at Darmstadt several times and the Gaudeamus Music Week.
De Kruyf wrote several vocal compositions, e.g. songs with orchestra, the choir symphony Ode to the west wind (1978) and the opera Spinoza for the Holland Festival 1971. Furthermore the radiophonic opera's Quauhquauhtinchan in den vreemde (1971) and Since, on a quiet night (1980). His compositions have been performed during the annual Gaudeamus Music Week and at many ISCM-festivals, starting with Toene aus der Ferne in 1967.
Ton de Kruyf was awarded the Visser Neerlandia Prize for De blinde zwemmers (1966) in 1968 and in 1972 the Fonteyn Tuynhout Prize for Séance (1969) for percussion.