 Slon appeared with the group for a total of nine years, and has also played and recorded albums with Dori Caymmi, Paulinho da Costa, John Pisano and Joe Pass, among others.Slon also co-led (with Milcho Leviev) the Leviev-Slon Quartet, releasing albums for Vartan Jazz ("Jive Sambas", among others) and then for Elephant Records (“When I'm 64”), the latter recorded with Herbie Mann.The last Trio of which he was the drummer was the newly formed Joao Donato Trio in 1999, where that group recorded three albums on Elephant.