Octave questions
- Teacher: Alfred Alcon Beltran
- Teacher: Amaury Castro Junior
- Teacher: Marco Discacciati
- Teacher: Bernd Eberhardt
- Teacher: Ana Ferraz
- Teacher: Edwin Florez-Gomez
- Teacher: Lukasz Grabowski
- Teacher: Jenny Harlow
- Teacher: Andreas Heinzelmann
- Teacher: Henry Hickman
- Teacher: Philippe Pringuet
- Teacher: Carlos Rincon
- Teacher: Yan Shi
- Teacher: Łukasz Szeremeta
- Teacher: Marcos Talau
- Teacher: Waranyu Wongseree