For years, Aurelius Prochazka has helped shape the landscape of music creation on Apple platforms through his work as founder of AudioKit. With the release of Metronome Hero, he turns his attention to one of the most fundamental — and often misunderstood — aspects of musicianship: rhythm.
We sat down with Aure to talk about groove, practice, and why he believes timing should be something musicians can see as well as feel.
From click tracks to feedback
Metronome Hero wasn’t Aure’s first experiment with rethinking the metronome.
“I’ve been interested in how metronomes affect practice for a long time. What eventually became clear to me is that controlling the metronome is itself a distraction. You should be immersed in playing. The tool should adapt to you, not the other way around.”
That realization led to a different approach: a metronome that listens.
Instead of simply providing a click, Metronome Hero analyzes what musicians play in real time and responds — adjusting tempo, visualizing timing placement, and helping players understand whether they’re rushing, dragging, or sitting comfortably in the pocket.
Rhythm as shared responsibility
Aure’s perspective on rhythm deepened through years of playing in bands.
“A band is only as strong as its weakest link. Rhythm is usually where that shows up. If one person rushes, everyone else ends up following. I started thinking about how we can help each other improve, and how I could improve myself first.”
Traditional metronome practice, he found, often misses the point.
“Teachers say, ‘Use a metronome.’ But just using one doesn’t automatically improve your timing. The real goal is learning how to listen — to the beat, to the music around you, and to your own playing.”
The moment of locking in
For Aure, the defining experience in rhythm training is the sensation of locking into the groove.
“Once you feel truly locked in — once you know what the pocket feels like — there’s no going back. It changes how you play with other musicians. It changes your confidence.”
Metronome Hero was designed to help musicians reach that moment more reliably.
By combining audio feedback with visual timing cues, players can recognize subtle shifts in their feel exactly when they occur.
“If you start to rush, you can notice it immediately. You can ask yourself what feels different in your hands or your body. That awareness is powerful.”
Designing for feel, not just precision
Although the app is built on sophisticated timing analysis, Aure was careful to avoid making practice feel clinical.
“Too much technical detail can pull you out of the zone. Groove doesn’t live at a single mathematical point — it lives in a range. That’s why Metronome Hero uses timing zones instead of just telling you how many milliseconds you’re off.”
The app’s rainbow color system, motion-rich visualizations, and adaptive tempo logic were all intentional design choices aimed at sustaining engagement.
“I wanted something I could spend hours with. Metronomes have a reputation for being boring. But when you get meaningful feedback and you can feel your progress, practice becomes addictive.”
A rhythm training philosophy
Aure sees Metronome Hero as more than a tool — it reflects a broader philosophy about music education.
“This isn’t about forcing musicians through a rigid path. Everyone develops differently. The idea is to give players a way to sculpt their own sense of time and groove.”
He believes that making rhythm visible could reshape how musicians learn and collaborate.
“If timing becomes something you can observe and improve intentionally, ensemble playing changes. Practice culture changes. Confidence changes.”
Looking ahead
Metronome Hero may be only the first step in a larger journey.
“There are other apps I’ve been working on for a long time. Rhythm is central to all of them. If you want to prepare for what’s coming next, spend time developing your groove using Metronome Hero.”
For now, Aure hopes the app will help musicians reconnect with one of the most essential aspects of music.
“At its foundation, music is rhythm. Once you experience the pocket, everything else becomes easier.”
Try Metronome Hero
Metronome Hero is free, giving musicians full access to its rhythm training tools, visual feedback systems, and adaptive practice features. One-time purchase allows you save and access all your practice sessions over time.
“Unlike a synth, which you might use for a single project or a particular sound, rhythm is a long-term investment. This is something musicians build over months and years. I want people to keep playing, keep improving, and keep discovering new depth in their groove.”
“At the same time, I want to keep evolving Metronome Hero — adding new visualizations, better tracking, and deeper results analysis. There’s so much more I want to build, but at some point you have to release the app and let musicians start using it. That time is now.”
Learn more about Metronome Hero at
MetronomeHero.com
