Season 2005/06

Trio Fragile, Isabelle Duthoit, John Schröder, Jaak Sooäär, Andres Noormets, Tanel Ruben, François Rossé, Meelis Vind, Ursula Saal, Anto Pett, Anne-Liis Poll, Mixel Etxekopar, Lippajad, Xavier Charles, Taavi Kerikmäe,  Mart Soo

Season 2006/07

Jack Wright, Rivo Laasi, Taavo Remmel, Lippajad, Beggars Farm, Martine Altenburger, Uchihashi Kazuhisa, Jean-Marc Montera, Taavi Kerikmäe, Mart Soo

Season 2007/08 ja 2008/ 09

Free Tallinn Trio, Tanel Ruben ,Madis Metsamart ,Vambola Krigul , ASK:, Improloo, Riho Sibul,Rainer Jancis, Raul Keller, Hello Upan , Lippajad, , Estonian Guitar Octet,Liudas Mockunas, Xavier Charles, Jean Philippe Gross, Michel Doneda, Petri Kuljuntausta, Nöel Ackhoté, Liz Allbee, George Cremaschi, Erhard Hirt, Lelio Giannetto

Season 2009/10

Jean-Francois Pauvros, Kalle Tikas, Eleanore Kampe, Weekend Guitar Trio, Michel Doneda, Taavi Kerikmäe, Petras Vysniauskas, Jaak Sooäär, Tanel Ruben, Trio Fata Morgana, 

Festival Improtest 2010

Beggars Farm, Axel Dörner, Isabelle Duthoit, Phil Minton, Taavi Kerikmäe, Mart Soo, Liis Jürgens, Liisa Hirsch, Leonora Palu

Season 2010/11

Renzo van Steenbergen, Terje Isungset, Eesti Elekter, Roomet Jakapi, Eleanore Tikas