Sonuscore’s THE ORCHESTRA COMPLETE 4 was created to keep technology out of the way so composers can shape ideas quickly, test them with full orchestral colour, and focus on the music. Founder Tilman Sillescu explains the thinking behind their most comprehensive scoring engine yet.
In a recent discussion with Tilman Sillescu, founder of Sonuscore, we explored the thinking behind THE ORCHESTRA COMPLETE 4, the latest evolution of their flagship orchestral engine. The conversation revealed not only what is new in this version, but also the deeper philosophy that continues to guide how Sonuscore designs its tools. It is all about keeping technology in the background so composers can focus fully on writing music.
Why THE ORCHESTRA Exists
When Sonuscore first created THE ORCHESTRA, the aim was to give composers a way to realise orchestral ideas instantly, without the usual technical barriers. Many earlier libraries provided impressive ensemble sounds, but often at the cost of flexibility. You could play something powerful immediately, but changing the balance of individual sections or adjusting articulation detail was often difficult or simply not possible.
Tilman explained, “For me, it was always about hearing ideas quickly. I want to know if something actually works musically, not just on paper.” This led to Sonuscore’s decision to record orchestral sections separately and build an engine that allowed composers to blend, mix and shape them in real time. From the start, it was about shortening the distance between spontaneous sketching and precise orchestration.
Over time, they expanded this concept with titles like STRINGS OF WINTER, HORNS OF HELL and WOODS OF THE WILD, each adding more instruments and articulations. Now existing and new material culminates in THE ORCHESTRA COMPLETE 4’s FORCES OF FURY.
A Familiar Approach, Simply More Capable
What stands out with THE ORCHESTRA COMPLETE 4 is how much it adds without changing how the library works. Tilman said, “You can move from the original THE ORCHESTRA to THE ORCHESTRA COMPLETE 4 and you will feel completely at home. The interface is familiar. You load a preset and play. But the results are richer and broader. There is more power without any extra complexity.”
THE ORCHESTRA COMPLETE 4 builds on the existing strengths with several important enhancements. There are new string ensembles recorded with more players, designed specifically to achieve a warmer and fuller cinematic sustain. “We wanted the strings to sound bigger. Many composers asked for that broader sound,” Tilman said.
There is also new percussion recorded in London. It includes taikos, concert bass drums, snares, toms, metals and prepared piano. These recordings give composers a strong foundation for building high-impact scoring without needing extra libraries.
The new add-octave feature means each slot can instantly double at the octave. This dramatically expands the orchestral scale with a single click. Tilman said, “We were surprised ourselves how big the difference was. It almost feels like you have twice as many slots. You play the same part, press one button, and suddenly it is like two violin sections are there instead of one.”
Another highlight is the 150 new presets. Many are structured like complete cues with intros, main sections and outros, all navigated by simple keyswitches. “It allows you to build entire passages without heavy sequencing,” Tilman explained. “You stay focused on the music.”

Composing With Immediate Feedback
Tilman was clear about why this matters. “I am impatient. I can imagine the orchestra in my head, but it is not the same. I want to play something and immediately hear how it sounds. Then I know if it works or if I should try something else.”
This is really the core idea behind THE ORCHESTRA. It is not about bypassing the craft of composition. It is about reducing the time between having a musical thought and hearing it performed by a convincing virtual orchestra. It avoids spending hours setting up large templates or programming intricate MIDI only to discover that an idea does not hold up.
Presets That Follow Compositional Logic
A significant improvement in THE ORCHESTRA COMPLETE 4 is how many of the new presets are structured like actual scoring cues. They include sections for introductions, main ideas, variations and endings, all triggered through simple keyswitches. This lets composers shape the arc of a piece directly from the keyboard without having to build multiple tracks or automation setups.
“With THE ORCHESTRA COMPLETE 4, you can start with a sparse rhythm, then switch to a fuller version of the same idea. It is very close to how real film scores develop,” Tilman said. This design grew out of Sonuscore’s experience with tools like THE SCORE, which also focused on cue-based structures. In THE ORCHESTRA COMPLETE 4, it means ideas can evolve naturally without adding technical overhead.
