Terry Callier was an American jazz, soul, and folk guitarist and singer-songwriter known for his distinctive baritone voice. Emerging from the Chicago folk scene in the 1960s, his style blended diverse genres, creating a unique fusion of jazz, folk, and soul. Callier gained critical acclaim for albums like "What Color is Love" and "Occasional Rain" but achieved major commercial success later in his career, particularly in the UK. His music has influenced a wide range of artists across genres, cementing his legacy in music history.