In 1927 Armstrong worked with pianist Earl Hines, who had a similar impact on his instrument as Armstrong had on trumpet. Hines' melodic, horn-like conception of playing deviated from the contemporary conventions in jazz piano centered on building rhythmic patterns around "pivot notes." His approaches to rhythm and phrasing were also free and daring, exploring ideas that would define swing playing. His approach to rhythm often used accents on the lead-in instead of the main beat, and mixed meters, to build a sense of anticipation to the rhythm and make his playing swing. He also used "stops" or musical silences to build tension in his phrasing. Hines' style was a seminal influence on the styles of swing-era pianists Teddy Wilson, Art Tatum, Jess Stacy, Nat "King" Cole, Erroll Garner, Mary Lou Williams, and Jay McShann.