Violin of scordatura in classical music is Camille Saint-Saëns' "Danse Macabre", where the solo violin's E string is tuned down to E to impart an eerie dissonance to the composition. Other examples are the third movement of "Contrasts", by Béla Bartók, where the E string is tuned down to E and the G tuned to a G, and the Mystery Sonatas by Biber, in which each movement has different scordatura tuning. In Indian classical music and Indian light music, the violin is likely to be tuned to D–A–D–A in the South Indian style. As there is no concept of absolute pitch
Concert pitch D-flat), and are often tuned to match B brass instruments when the two are required to play together. The Stuttgart Conference of 1834 recommended C264 (A440) as the standard pitch based on Scheibler's studies with his Tonometer. For this reason A440 has been referred to as Stuttgart pitch or Scheibler pitch. In 1939, an international conference recommended that the A above middle C be tuned to 440 Hz, now known as "concert pitch". As a technical standard this was taken up by the International Organization for Standardization in 1955 and reaffirmed by them in 1975 as ISO 16. The difference