Video of Duo TTC performing "Cercle circassien", "Bal à Lyon".
Tiennet Simonnin - chromatic button accordion (CBA), whistle. Thomas Restoin - chromatic button accordion (CBA)
Duo TTC - Cercle circassien - Bal à Lyon - YouTube youtube.com
Video of two Slovenian accordionists Miha Debevec and Tomaž Rožanec playing ABBA accordion medley. They both are using Zupan accordions (piano accordion & button accordion).
ABBA medley played with two accordions - YouTube youtube.com
Video of female accordion duo called LiubAnya (дуэт ЛюбАня). This project is created by two cute accordion ladies from Russia: Liubov Akhanova and Anna Yushina.
Video with diatonic accordion duo called 21 Boutons (Marinette Bonnert & Pere Romani). Song list: Passepied, She moves, Le merlot, Chassepain, V'là l'printemps. Video length: 13 minutes.
21 Boutons (Passepied / She moves / Le merlot - Chassepain ... youtube.com