Eduard de Boer (born 1957) studied piano with Thom Bollen, composition with Hans Kox at the Utrecht Conservatory, and orchestral conducting with Anton Kersjes at the Maastricht Conservatory. From 1981 to 1990 he worked as a free lance pianist for the orchestras and choir of the Dutch radio. Then he decided to dedicate himself entirely to composing.
Ever since 1981 De Boer has been writing his music almost exclusively in commission. He composed an orchestral overture on the occasion of the opening of the Enschede Music Centre (which he later reworked for wind orchestra); for the opening season of the Eindhoven Frits Philips Music Centre he wrote the cantata The Wedding of the Moon and Sun; and he composed his first violin concerto for the opening of the Tilburg Concert Hall. Up till now he has written three operas, three symphonies, two ballets, two string quartets and many other works, among which many compositions for choir, for symphony orchestra and for wind orchestra. Many of his compositions were written under his pseudonym Alexander Comitas.
Several of his compositions for wind orchestra served as test pieces for contests. His Vita Aeterna Variations, for instance, served as an A section test piece during the 2012 European Brass Band Competition EBBC in Concert hall De Doelen in Rotterdam. This composition was also chosen as test piece for the Championnat National de France in January 2014 in Yvetot and for the British Open for brass bands, in September 2014 in the Birmingham Symphony Hall. In January 2015 it was awarded test piece of the year 2014 by the British internet brass band magazine 4barsrest.
In October 2017, he was awarded the Dutch BUMA Brass Award for wind music, for his merits in this field. And in October 2018 he won the first prize of the Peter and the Wolf composition contest for music for children in Yekaterinburg with his composition The Symphonic Colour Factory.
Apart from his composing activities, De Boer has been active as a pianist and conductor of his own works. He also gives courses and lectures on composing everywhere in Europe and teaches basics of composition at the Leopold Mozart Centre of the Augsburg University.