Thijs Van Leer (born 31 March 1948, in Amsterdam) is a Dutch musician and singer, best known for being in the progressive rock band, Focus. Van Leer has also made many solo albums which were also classical music and jazz based. His main instruments are flute and different types of organs. He also sings, yodels and whistles. Van Leer received his first flute at the age of eleven from his father, a classical flautist.