Mozart's "Romantic Sonatas" for violin and piano have uncertain authorship. The original autographs are missing, and the publisher, Breitkopf & Härtel, doubted their authenticity. Konstanze, Mozart's wife, offered the sonatas to the publisher in 1799, but they were disappointed and requested the original manuscript. However, it could not be found, adding to Konstanze's doubts.
Mozart's "Romantic Sonatas" is a collection of 6 sonatas for violin and piano, but their authorship is not fully authenticated. The original autographs are missing, and the publisher who printed them, Breitkopf & Härtel, had doubts about their authenticity. Konstanze, Mozart's wife, offered the sonatas to the publisher in 1799, but they expressed disappointment and asked for the original manuscript to verify their authenticity. However, the original manuscript could not be found, which only increased Konstanze's doubts about the sonatas' authenticity. It's possible that she had even learned or discovered the composer's name by then.
On November 16, 1800, she wrote to others stating that she had left Breitkopf & Härtel to judge the music pieces again and estimate them based on their own criteria. She also stated that she had completely given up any guarantee that the music pieces were composed by Mozart. This was a significant decision for her.
Wolfgang Amadeus Mozart, Violin Concertos Nos. 3, 4, 5 for Violin and Piano Reduction, with cadenzas by Sam Franko (Nos. 3 and 5), Eduard Herrmann (No. 4) and Joseph Joachim (Nos. 4 and 5). Published by Schirmer's Library of Musical Classics.
The String Quintet No. 1 in B flat major, K. 174, was written by Wolfgang Amadeus Mozart in December 1773. Unlike Mozart's other viola quintets which are scored for two violins, two violas and cello- this early work is scored for two violins, two violas and basso.
