For the month of January 2011, any customer holding a single-user educational, professional or competitive crossgrade for any version of Sibelius from Sibelius 1.x to Sibelius 5.x can upgrade to Sibelius 6 for 50% off the regular upgrade price.

The upgrade to Sibelius 6  is CHF 119 instead CHF 249 until 31st January 2011.

Read more about Sibelius 6