ralph humphrey was an american abstract painter whose work has been linked to both abstract expressionism and minimalism. he was active in the new york art scene in the 1960s and '70s. his paintings are best summarized as an exploration of space through color and structure. he lived and worked in new york, ny.he is not to be confused with the percussionist ralph humphrey, best known for being the drummer of the mothers of invention from 1973 until 1974.ralph humphrey studied at youngstown state university. he moved to new york in 1957 and immediately became a part of the art scene that was kn…