Sibelius was originally developed by British twins Jonathan and Ben Finn for the Acorn Archimedes computer under the name 'Sibelius 7', not as a version number, but reminiscent of Sibelius' Symphony No 7. The Finns said they could not remember why they used Jean Sibelius' name, but it was probably because he was also ‘a Finn' (i.e. Finnish), as well as being one of their favourite composers. Development in assembly language on the RISC OS started in 1986 after they left school, and continued while they were at Oxford and Cambridge universities, respectively. Both were music students, and said they wrote the program because they did not like the laborious process of writing music by hand.