Robert Bartha has created the Wersi OAX Style Package 1 Abba with styles for the world hits Dancing Queen, Mamma Mia, Super Trouper, The Winner Takes It All, Waterloo and Gimme Gimme Gimme. Four STST presets are stored for each style. The style package is available from software version V 1.45. ABBA was already one of the commercially most successful music groups worldwide at the time. But even more than 30 years after their separation, without further performances and new songs, the music still has a high popularity.