Maarten Altena
Born: 22nd January 1943, Amsterdam, Netherlands
Nationality: Dutch
Maarten van Regteren Altena is a Dutch composer and contrabassist.Altena attended the Conservatorium van Amsterdam (he studied contrabass) and graduated in 1968. Between 1980 and 1985, he studied composition with Robert Heppener.
Read more at https://en.wikipedia.org/wiki/Maarten_Altena