Computer requirements for Sibelius

Minimum hardware requirements

Minimum requirements for Sibelius 6 alone

Windows XP 32-bit SP2 or later, or Windows Vista 32-bit SP1 or later, 512MB+ RAM, 550MB hard disk space, DVD-ROM drive

Mac OS X 10.4.9 or later or Mac OS X 10.5, 512MB+ RAM, 550MB hard disk space, DVD-ROM drive

Additional recommendations for using the included Sibelius Sounds Essentials sound library

Windows: Intel Core Duo or AMD Turion or better, 1GB+ total physical RAM (2GB recommended), 3.5GB total hard disk space, ASIO-compatible soundcard

Mac: Intel Core Duo or better, 1GB+ total physical RAM (2GB recommended), 3.5GB total hard disk space

You can use Sibelius Sounds Essentials if your computer doesn’t meet the recommended requirements, but you may find that you cannot use as many sounds simultaneously.

New operating systems and 64-bit computing

If you are already running 64-bit Windows, or are interested in upgrading to Windows 7 or Mac OS X 10.6 Snow Leopard when they are released, please see our notes on 64-bit computing, Windows 7 compatibility, or Mac OS X 10.6 Snow Leopard compatibility.

Using external hardware MIDI playback devices with Sibelius 6

If you have an external hardware MIDI playback device that you wish to use with Sibelius 6, please check that a compatible sound set is available: click here for a list of sound sets supplied with Sibelius 6.

Sibelius 6 Network Licences

Technical information

Sibelius's network licenses operate on a client-server model. The Sibelius program itself is installed on the local hard drive of each of the client workstations, and a separate Licence Server program is installed on a single designated server or workstation. The Licence Server program is supplied on a separate CD-ROM from the Sibelius program itself and enables the designated number of licensed client copies to run on the network simultaneously. In conjunction with Sibelius 6's Classroom Control feature, the Licence Server also lets you send messages to users of the client copies, send and receive Sibelius files between client machines, and close copies down from the server machine.


Sibelius requires a network using the TCP/IP and UDP protocols. (Your network may use other protocols in addition to TCP/IP and UDP, but TCP/IP and UDP must be present in order for the Licence Server to communicate fully with the client copies.)

The Sibelius Licence Server and the Licence Server Control Panel will run on Windows XP, Windows 2003 Server, Windows 2008 Server, Windows Vista 32 bit, Mac OS X 10.4 or later or on an Xserve running Mac OS X 10.4 or later. It will also run on a virtual server running VMWare using a qualified Windows operating system as listed above.