Indeed, in opus 20, most of the minuet movements are minuets in name only. The finales are generally lightweight, usually minuets or rondos. When he returned to the form a decade later he studied Mozart minuets in preparation. About 1775 he issued a collection of "Twenty Minuets and Sixteen Reels". It is more reminiscent of Beethoven's bagatelles than of most of his minuets. Each contains four movements, including minuets and trios. It is a divertimento consisting of six movements, including two minuets. Once again among the Opus 50 minuets, Haydn is unsettling harmonic conventions. The method contained 26 dancing tunes, 6 minuets, 2 duos, a sonata and some airs. The Bach-Gesellschaft published the Minuets in 1894. The pieces in this work are organized by tone and include also minuets. These Minuets are among the best known pieces of music literature. In 21st-century publications the Minuets BWV Anh. Also included were "Seven Minuets and Six Canons" (1971) and "Paraphrase in Polyphony" (1967). These alterations included dropping the introductory march (K. 385a) and one of the minuets.