Named after a weather phenomenon, Belgium-based improvisers Donder first performed as a band in 2015 when they represented the conservatory of Antwerp at the Harmos festival in Portugal. Things accelerated quickly, as in the three following years they toured extensively in Belgium and abroad and released three albums. First ‘Still’ in 2016, recorded on the attic of the local music school where Harrison played his first notes. In 2018, a quartet album with Danish reed player Lars Greve (Girls in Airports), recorded in a church in Copenhagen and after winning the third edition of the Storm! contest they presented their third album ‘Keukenpraat’ on the Belgian label W.E.R.F. records.

Drummer Casper Van De Velde (°1995) graduated from the Royal Conservatory of Antwerp in 2017 where he studied with Teun Verbruggen, Stéphane Galland and Dré Pallemaerts. He won the Storm! contest both in 2015 with his duo SCHNTZL and again in 2017 with Donder. In 2016 he was awarded the prize for best instrumentalist at the Tremplin jazz contest in Avignon. Casper is also active in the bands Bombataz and In een Discotheek, and participated in different theater productions.

Pianist Harrison Steingueldoir (°1995) finished his masters degree at the Royal Conservatory of Antwerp in 2017, where he studied piano with Free Desmyter and Erik Vermeulen. Throughout the years Harrison won several awards as a soloist and as band member and toured through Belgium, Italy, Norway, Denmark, Portugal and Japan with Donder, GYJO and coaching projects with Ambrose Akinmusire and Avishai Cohen. Harrison also teaches and composes and arranges for bigband.

Bassist Stan Callewaert (°1995) moved to Denmark in 2016 to study Music Performance at the RMC. in 2017 he also completed his masters at the conservatory of Antwerp where he studied with Nic Thys and Brice Soniano. Stan is actively involved in the Copenhagen-based trio Lawaai and his solo double bass project. He performed with celebrated artists like Randy Peterson, Kresten Osgood and Warren Smith and can be recognized by his unconventional, textural approach to the double bass.