Step inside Illyus’ engineering mindset. In this opening chapter, he breaks down the purpose of the course and highlights the common mistakes producers make when trying to take an idea from a loop to a finished record.
Illyus works from a real student idea, showing how to identify what’s worth keeping - and what isn’t. By stripping the track back and focusing on the core elements, he reshapes the idea into a clear, solid foundation that can carry the entire record.
With the core idea in place, Illyus refines and elevates it. Learn how to enhance key elements, shape frequencies, and bring out the character of your track before moving into arrangement.
This is where most producers struggle. Illyus shows how to structure your track for impact - from breakdown to final drop - creating contrast, energy, and flow while keeping the identity of the record intact.
A second track, a completely different genre. Illyus switches gears into Speed Garage, showing how the same core principles can be applied across styles - proving that strong engineering translates everywhere.
Learn how to structure your track into a full arrangement. Illyus breaks down how to build momentum, create contrast, and keep the listener engaged from start to finish.
Watch the track come together. Illyus applies final processing, polish, and detail to turn a solid idea into a finished, club-ready Speed Garage record.
With a reputation for delivering consistent, club-ready records, Illyus Barrientos brings his unique perspective as both a producer and engineer to Toolroom Academy.
With releases on Toolroom, Defected, Club Sweat, Edible and Armada, alongside remixes for Dom Dolla and a recent collaboration with MK, Illyus has built a workflow centred around clarity, efficiency, and making the right decisions – not overcomplicating them.
In this exclusive masterclass, Illyus steps into the role of engineer, working from real student demos and transforming them into fully realised, club-ready tracks. Rather than building from scratch, the focus is on one of the biggest challenges producers face: finishing music.
Across two tracks in different styles (House & Speed Garage), he shows how to refine core ideas, shape the groove, and make the decisions that turn a loop into a record.
If you find yourself stuck in loops or overthinking your process, this course will give you a clearer, more focused approach to finishing music.
From Rough Idea to Record
Watch Illyus take real student ideas and develop them into finished tracks, showing exactly what’s needed – and what isn’t.
Decision Making in the Studio
Learn how to move quickly, commit to ideas, and avoid the trap of overthinking your production.
Refining the Core Elements
See how small adjustments to drums, bass, and key sounds can completely transform the impact of a track.
Arrangement & Flow
Understand how to structure a track for the dancefloor, building energy and maintaining momentum from start to finish.
This isn’t about adding more – it’s about knowing what matters.






