Tobias Matthay's 'Piano Quartet in One Movement in C major, Op. 20 is a composition for piano, violin, viola and cello that was completed in 1882, but not published until 1906 following revision in 1905, with a dedication to fellow composer John Blackwood McEwen.
Structure
The quartet comprises a single multi-tempo movement marked Maestoso - Allegro - Grandioso - Tempo I - Animato
References
Piano Quartet (Matthay) Wikipedia(Text) CC BY-SA