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NotePerformer performs your music with realistic human phrasing for all instruments.

How can we do this? By reading ahead in the music, NotePerformer can process entire phrases of written music at once. Instead of just turning sounds on and off like a normal sound module, each phrase is carefully sculpted into an accurate and fluent musical performance.


With NotePerformer's technically groundbreaking built-in sound library, you can write for your choice of ensemble.
Unlike other orchestral libraries that use static samples, NotePerformer's string sections are created by stacking solo players using section-building technology, allowing an almost infinite variation in sound. NotePerformer also contains a comprehensive range of woodwinds and brass instruments, British-style brass band, pitched and unpitched percussion, saxophones, piano, harpsichord, theremin, accordions, a pipe organ with multiple stops, guitars, choir vocals and more. Just about anything you will ever need to write classical or modern orchestral music or film scores.

Don't be fooled by the relatively small software size. Instead of clogging your harddrive with endless takes on the same note, NotePerformer's sound library uses a combination of samples, modeling and synthesis to achieve different articulations and dynamic levels.

For a full list of instruments, please follow this link.


NotePerformer is very easy to install, and there is no difficult technology to learn.

When working in Sibelius, NotePerformer will act just like the built-in sounds. Instruments are assigned automatically from your score, and you control them from the Sibelius mixer. Our sounds are so easy-to-use there is not even a separate interface. Everything is done from Sibelius.

We use the default House Styles, Dictionary and Instrument Definitions. So switching between the built-in sounds and NotePerformer is just a one-click operation in Sibelius.


NotePerformer helps you to orchestrate more accurately, and to follow existing tradition.

NotePerformer was carefully fine-tuned against a wide selection of famous works and recordings. We did not choose how NotePerformer should read notation. It was determined from benchmark works by composers such as Beethoven, Tchaikovsky and John Williams. With this combined knowledge under the hood, NotePerformer will add to your skills whether you are a novice or a highly accomplished orchestrator or composer.


Your scores can now sound good without compromising your layout.

Regardless of whether you put every solo instrument on a separate staff or let them share staves, you get the same realistic playback. Even when writing for two or more solo instruments on the same staff you will hear the sound of multiple instruments playing. For musicians playing more than one instrument in the same score, you can do real-time instrument changes at any time.


Fast loading – no waiting while working! At the startup of Sibelius the entire NotePerformer sound library is loaded into memory, eliminating additional loading time.

As our technology allows super-small and very optimized virtual instruments, we can easily load them all to memory. So you get immediate access to all of NotePerformer's instruments, even when working with multiple scores.

All instruments in our library use either synthesis technology or samples powered by our own patented technology for changing the timbral brightness in real-time, or a combination of the two.


NotePerformer features its own built-in concert hall reverb. You easily control the reverb level for each instrument from the Sibelius mixer.

The instruments are positioned in the soundfield simply by turning the Sibelius mixer's pan knobs, powered by our own powerful panning technology. Giving you that true sensation of being in front row at a concert.





List of features

  • Plug-and-Play sound library encompassing a fully equipped contemporary symphonic orchestra.
  • Expression engine which reads ahead in the score, interpreting the music.
  • Full integration, like working with the built-in sounds.
  • Easy to use. Just write your score and press play.
  • Individual staves respond to Sibelius's mixer (volume, pan, reverb).
  • Quick and easy installation.
  • No waiting for samples to load when opening scores or switching sounds.
  • Uses the standard Dictionary/House Styles in Sibelius.
  • Sounds are assigned automatically.
  • Accurate legato/slur interpretation and playback.
  • Shortening accents with adaptive length (staccato, staccatissimo, mezzo-staccato).
  • Dynamics altering note accents (accent, marcato, tenuto) also on top of slurs and other articulations.
  • String sections are generated in real-time from multiple solo instruments, playing auto-divisi.
  • Authentic brass and woodwind section playback, even with unison instruments.
  • Multiple con sordino options for all brass instruments (straight, cup, bucket, plunger, harmon).
  • Flutter-tonguing for all brass and woodwind instruments.
  • Automatic flutter-tonguing playback when notating buzz roll or four slashes (or more) on a note.
  • Vibrato control for all brass, woodwinds and strings (vibrato, non vibrato or heavy vibrato).
  • Automatically reads artificial harmonics notation, and plays the right harmonic pitch.
  • Sound Set and Playback Configuration auto-installed for all versions of Sibelius.
  • Real-time instrument changes, between any types of instruments, on all staves.
  • Entire sound library is loaded to RAM at startup.
  • Half (1/2) string section sounds, for dividing any string section over two staves.
  • Church organ, with individual stops that can be turned on/off using MIDI events in the score.
  • SATB choir with Ah's and Oh's, as auto-divisi sections or solists.
  • Bowed pitched percussion (xylophone, marimba, glockenspiel, chimes, crotales, vibraphone).
  • Orchestral saxophones ranging from bass to sopranino.
  • Theremin with expressive playback. Choose between classic analog tube and modern sine.
  • Acoustic guitars (classical guitar, steel-stringed guitar, mandolin, banjo, ukulele).
  • Sampled "D" concert grand piano.
  • Accordion with individually controllable stops, and bandoneon.
  • Drum kit (jazz) with a choice of sticks or brushes.
  • Electric organ (standard selection of drawbar, rock or percussive sound).
  • Electric guitar + bass with optional effect pedals (chorus, flange, phase, wah-wah, overdrive, distortion, fuzz, metal).
  • Recorders ranging from bass to garklein.
  • Brass band instruments (British-style).
  • Built-in concert hall reverb.
  • MIDI feature (see user's guide): Custom base tuning (e.g. 440 Hz).
  • MIDI feature (see user's guide): Custom pipe organ registration.
  • MIDI feature (see user's guide): Custom sections (a2, a3, ...).
  • MIDI feature (see user's guide): Custom vibrato depth.

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