All just my personal opinion
Blog post #502 — Concert review, ★★★½, Baldur Brönnimann / Basel Sinfonietta, Jocelyn B. Smith, David Moss @ Freilagerplatz, Basel / Münchenstein, 2019-06-23 — Heiner Goebbels (*1952): Surrogate Cities (1994)
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Blog post #491 — Concert review, ★★★★, Wu Wei, Baldur Brönnimann / Basel Sinfonietta @ Pantheon, Basel / Muttenz, 2019-05-05 — Rudolf Kelterborn: Musica Luminosa (1984); Bernd Richard Deutsch: “Phaenomena” for Sheng and Orchestra (2019, World Premiere); Isang Yun (1917-1995): Symphony II (1984, Swiss Premiere)
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Concert review, Christian Dierstein, Baldur Brönnimann / Basel Sinfonietta @ Musical Theater Basel, 2018-10-21 — Aleksandr Lazarevich Lokshin (1920 – 1987): Symphony No.4, “Sinfonia stretta” (1968, Swiss Premiere); Emmanuel Nuñes (1941 – 2012): “Wandlungen”, Five Passacaglias (1986, Swiss Premiere); Michel Roth (*1976): “Die letzte Welt” (“The last world”, 2018, World Premiere)
Concert review, Baldur Brönnimann / Basel Sinfonietta / OnStage smartphone app @ Musical Theater, Basel, 2018-09-16 — Crumb (1929 – 2022): A Haunted Landscape (1985); Furrer (*1954): Nero su nero (2018); Birtwistle (1934 – 2022): Earth Dances (1986)
Concert review, Kaleidoscope String Quartet, Baldur Brönnimann, Basel Sinfonietta @ Basel, 2018-06-10 — Mason Bates: Mothership (2011); Simon Heggendorn: Simply that (2018) & Cascades (2018); Missy Mazzoli: River Rouge Transfiguration (2013); Heggendorn: Lava (2018); Philip Glass: Dance from “Akhnaten” (1984); Heggendorn: Choral (2014) & Horizons (2018)
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