Piano Trio in B-flat major Op.133 for Piano Violin and Cello. One year after the completion of the 'Quartett-Konzert' Op.131 Louis Spohr finished his fourth Piano Trio Op.133 (1846). The first Piano Trio was greeted by the musical world with 'uncommon joy'. Whilst Spohr often wrote a final movement in virtuoso form in order to secure an effective ending the strength of the final movement in Op.133 lies in its pleasant lightness transparency and rhythmic pithiness. This Trio is earnestly recommended to professional artists and amateur musicians as a graceful chamber composition of the romantic period.