All just my personal opinion
Concert review, Musical Theater Basel, 2017-01-29: Baldur Brönnimann conducting the Basel Sinfonietta in Olivier Messiaen’s Turangalîla Symphony, with Kirill Zwegintsow (piano), Bruno Perrault (Ondes Martenot), and Ludovic van Hellemont (Celesta) as soloists
Concert review — Basel Sinfonietta / Baldur Brönnimann, Volkshaus Basel, 2016-09-24: Jannik Giger (*1985): Came Adrift (2016); Toshio Hosokawa (*1955): Ferne Landschaft III—Seascapes of Fukuyama (1996); Andrew Norman (*1979): Unstuck (2008); Brett Dean (*1961): Amphitheatre—Scene for Orchestra (2000); Kevin Volans (*1949): Strip-Weave for Orchestra (2002/03); Arturo Márquez (*1950): Danzón No.2 (1994)
Tonhalle Zurich, 2015-10-03: The Basel Sinfonietta, directed by Daníel Bjarnason, and Víkingur Ólafsson (piano) with the program “Epicycle 1”, featuring exclusively works of composers from Iceland, namely Jón Leifs, Þráinn Hjálmarsson, Anna S. Þorvaldsdóttir, Hlynur Aðils Vilmarsson, and Daníel Bjarnason