
To get GPO4 working, it should be as simple as choosing 'Garritan Personal Orchestra 4.0' from the 'Sound set' column on the right-hand side in Play > Playback Devices, where it currently shows 'General MIDI' in your screenshot.

If you already have GPO4, you don't need to worry about GPO Sibelius Edition any longer: it is superseded entirely by GPO4.


The playback engine has options for real-time interpretation of tempo and other score markings such as articulations and performance techniques. Notion's sample library for playback was recorded at Abbey Road by the London Symphony Orchestra. įrom version 3 onward, it supports ReWire, third-party VST effects and other third-party sound libraries, including presets for products from the Vienna Symphonic Library, EastWest, Miroslav Philharmonik, and Garritan Personal Orchestra. It includes an audio mixer to set volume levels, perform panning, and add effects such as equalization, compression and reverb. It automatically handles aspects of music notation such as stem direction and alignment of rhythmic values, and supports the input and output of notation in tablature form, synchronized with the standard music notation. Notion supports composition using a computer keyboard/mouse, MIDI keyboard, MIDI guitar, MIDI file, MusicXML file, or handwriting recognition.
