Klaas Bolt

Klaas Bolt was a Dutch organist and improviser. He taught improvisation at the Sweelinck Conservatory in Amsterdam, where Masaaki Suzuki was among his students. Bolt was a proponent of the use of slow tempi when playing hymns. He played many hymns at his weekly evening hymn sings, which drew substantial audiences. He would typically improvise the hymn introductions at these events.