For over thirty years, Joel Quarrington has served as the Principal Double Bassist of many ensembles including the Canadian Opera Company, the Toronto Symphony, Canada’s National Arts Centre Orchestra, and the London Symphony Orchestra.
Born in Toronto, Joel began his formal studies of the double bass when he was thirteen. He won the Geneva International Competition and the CBC Talent Competition.
A devoted teacher, Joel is a professor at the Conservatoire de Musique of Montreal and is appointed at the Royal Academy of Music in London as a “Visiting Artist”. Besides being a guest teacher at schools all around the world he holds annual masterclasses in the summers at Quebec’s Orford Arts Centre.

Joel has made several solo recordings, which have won both the prestigious JUNO and Opus Prizes. From the International Society of Bassists, Joel has received a Special Recognition Award for Outstanding Solo Performance and for Outstanding Orchestral Performance. He performs on an Italian bass made in 1666 by the Italian master, Santo Paolo Maggini.

Marcus Ali was born in Toronto to Trinidadian parents with a love of great music. A versatile musician who is equally at home in a wide range of genres, he has played on more than seventy albums on a variety of woodwinds (saxophones, flutes, clarinets, West African flutes, tin whistles). He has performed, toured and recorded with dozens of artists including Grand Prix de Jazz award winner Nick Ali and Cruzao, Juno nominees Matt Dusk, Jason Wilson, Mr Something Something, and Tomson Highway. He has toured extensively across Canada as well as throughout the US, the UK, the Caribbean and Japan. Marcus has also been the saxophone instructor and jazz combo director at Claude Watson School for the Arts since 2004. He teaches private woodwind lessons and regularly leads workshops and sectionals throughout the GTA.

Marta Potulska is a laureate of several international competitions, including winning first prizes at the Johannes Brahms Competition in Austria (2007) and at the International Bled Competition and Festival in Slovenia (2011), as well as second prize at the Michał Spisak International Viola Competition in Poland. She is also the recipient of a special award at the Lionel Tertis International Viola Competition on the Isle of Man, UK (2006).

Marta Potulska is also an active participant in many international music festivals such as Salzburger Festspiele, Golling Festspiele, Styriarte, Eggenberger Schlosskonzerte, St Gallen Festival, Austria, the Park City Music Festival, in Las Vegas, USA, the International Suzuki Institute in Salt Lake City, USA, Strings Only in Zadar, Osor Music Evenings Festival in Osor, Croatia, the International Music Interpretation Festival (ZAS) in Zakopane, Poland and theBled Festival as well as Arsana Art Festival Ptuj in Slovenia.

Marta Potulska completed her studies in the class of Matthias Maurer (former solo violist at Royal Concertgebouw Orchestra in Amsterdam) at the Universität für Musik und Darstellende Kunst in Graz, Austria and was an assistant in her class at the same University in years 2012-2014.

She is currently a member of the Vienna Chamber Orchestra, Wien International Soloists Ensemble and Varietas Ensemble as well as a member of Ensemble of Burgtheater in Vienna.