'series="Master chamber series, Master chamber series"' in OBA Collectie

Terzetto : for flute, oboe and viola

Seven Scottish airs : for two violins, viola, violoncello and piano

Quartet no. 2 : "Intimate letters" : for two violins, viola and cello

Quartet no. 1 : (inspired by Tolstoy's "Kreutzer sonata") : for two violins, viola and cello

Three idylls : for two violins, viola and cello

String quartett : in A major : op. 2 : for two violins, viola and violoncello

Trio : (1932) : for clarinet, violin and piano

Sonate da camera a tre : op. 1 ; Book I / Nos. 1-6

Sonate da camera a tre / Book II: Nos. 7-12

Quartet no. 6 : for two violins, viola and cello