Hubbell - Poor Butterfly

Zoë de Priester, Enrico Le Noci, Joris Teepe

Sant Andreu Jazz band, Joan Chamorro, Jon-Erik Kellso, Elsa Armengou, Neal Miner, Pau García, Joan Matacàs, Pere Company, Anna Ndiaye, Luc Martin, Marti Costalago, Sander Theuns, Mateu Teixeido, Asier Vázquez, Arnau Julià, Alba Pujals, Scott Robinson, Èlia Bastida, Joel Frahm, Lola Peñaranda, Didac...

Karl Ratzer (guitar), Karl Ratzer Trio (performer), Peter Herbert (bass), Howard Curtis (drums)

Spike Wilner

Rob Pronk, Derek Humble, Francis Coppieters, Johnny Fischer, Stuffe Combe, Karl Drewo

Bobby Hackett

Art Van Damme (accordion)

Peter Peuker, Karel Boehlee, Marius Beets, Marcel Serierse, Ernö Olah, Marie-José Schrijner, Liesbeth Steffens, Koen Schouten

David Arthur Skinner

Russ Morgan