Köchel catalogue son's earlier works; Mozart's catalogue of his own compositions (begun in February 1784 with K. 449) allows relatively precise dating of many of his later works. The catalogue included the opening bars of each piece, known as an incipit. Köchel divided the corpus into a main chronology of 626 works, and five appendices ("" in German, abbreviated to "Anh.") The appendices (Anh. I-V) included: Since Köchel published his original catalogue in 1863 (now referred to as K), the dating of Mozart's compositions has been subject to constant revision. Many more pieces have since been found, re-dated, re-attributed and re-numbered, requiring
K. S. Lewkowicz K. S. Lewkowicz Karl Samuel Lewkowicz is a musical composer and lyricist from London. Lewkowicz lives and works in London, where he has a close ongoing working relationship with the Arcola Theatre in London's off West End, the theatre where most of his writing has been developed and produced. Most recently with playwright Amy Rosenthal he wrote the music and lyrics for The Queen and I – a musical about Queen Victoria and her relationship with her Muslim servant. The first reading of The Queen and I took place in August 2015 at Arcola theatre as part of their Grimeborn