The Sibelius Group today announced the release of Sibelius 2, a “revolutionary” new version of its music notation software that adds more than 200 new features. Among the features is the use of artificial intelligence to arrange and orchestrate music automatically, making Sibelius 2 the first-ever commercial program capable of such a task. Sibelius 2 is currently available for Windows for US$599; a Mac OS X version is due in the first quarter of 2002.