American Express puts 50 emerging musicians in studio to make demos Pictured: Anna Laverty, one of the producers involved in the program Fifty emerging musicians from around Australia get to make demos with some of the country’s best producers and in the best studios this month, courtesy of American Express. Some like SEABASS, Goodnight Japan, Fools, Asha Jeffries, Human Movement, Before The King and Mean Times have already made a name for themselves on the live circuit. Among the producers involved are Anna Laverty, Simon Cohen, Rohan Sforcina, Mick Wordley, James Mangohig, Antonia Gauci, Ian Haug, Yanto Browning, Mitta Norath, Aaron Dobos and Adam Rhodes.