Jos Cleber

Jozef "Jos" Cleber (Dutch pronunciation: [ˈjoːzəf kleːˈbɛr]; 2 June 1916 – 21 May 1999) was a Dutch trombonist, violinist, conductor, composer, arranger, and producer.

He wrote numerous arrangements (notably to Heel de wereld, the Dutch Eurovision Song Contest entry in 1958) and conducted De Zaaiers, one of the orchestras of Dutch radio, and many recordings on the Phonogram label until he left for South Africa in 1962. However, he may be best known for orchestrating the Indonesian national anthem Indonesia Raya.

Read more about this composer on Wikipedia.