Armstrong played in brass bands and riverboats in New Orleans, first on an excursion boat in September 1918. He traveled with the band of Fate Marable, which toured on the steamboat Sidney with the Streckfus Steamers line up and down the Mississippi River. Marable was proud of his musical knowledge, and he insisted that Armstrong and other musicians in his band learn sight reading. Armstrong described his time with Marable as "going to the University", since it gave him a wider experience working with written arrangements. He did return to New Orleans periodically. In 1919, Oliver decided to go north and resigned his position in Kid Ory's band; Armstrong replaced him. He also became second trumpet for the Tuxedo Brass Band.