Sibelius

Sibelius most commonly refers to Jean Sibelius (1865–1957), a Finnish composer whose music played a central role in the development of Finnish national identity. His output includes seven symphonies, tone poems such as Finlandia and Tapiola, and a number of concertos and chamber works. His style spans late Romanticism and early modernism, with distinctive orchestration and thematic development.

Sibelius is also the name of a music notation software package developed by Sibelius Software Ltd for creating, editing, and printing musical scores. First released in the 1990s, it became a widely used tool among composers, arrangers, and educators. Key features include input via mouse or MIDI keyboard, playback with built-in virtual instruments, support for MIDI, MusicXML, PDF exports, and a library of notations. In the 2010s it was acquired by Avid Technology and is marketed as Sibelius by Avid; current versions run on Windows and macOS and are designed to integrate with other Avid products.