If you’ve ever messed around with digital audio workstations or built silly side projects to test new programming languages, you’ve probably wondered if you can combine those two passions. I first started exploring this after picking up Rust last year, when I got bored of building yet another CLI tool and wanted to make something I could actually interact with sonically. That’s when I figured out how to play drums in Rust, and it’s become one of my go-to demo projects for showing new developers how flexible the language really is. I used to mess around with cheap hardware drum machines as a teen, so this project felt like the perfect blend of my old hobby and new coding skills. You don’t need a background in audio engineering to pull this off, either – all you need is basic Rust familiarity, a pair of headphones, and about an hour of free time.
What You’ll Need Before You Learn How to Play Drums in Rust
You don’t need any fancy tools or paid software to get this project off the ground. Most of the resources you’ll use are free, and the entire setup process takes less than 10 minutes if you already have Rust installed on your machine. I’ve tested this workflow on Windows, Mac, and Ubuntu, so it works across all major operating systems with minimal adjustments.
You’ll also want to make sure you have Rust 1.60 or later installed to avoid compatibility issues with the audio crates we’ll use. The core crate we’ll rely on is the rodio audio playback crate, which handles all the low-level audio buffering and device communication for you, so you don’t have to write custom code for every operating system. You don’t need basic understanding of Rust function syntax beyond what you’d learn in your first week of working with the language, and you definitely don’t need any audio programming experience. Just make sure you have a working audio output device before you start coding, so you can test your work as you go.
Setting Up Your Rust Drum Project Structure
The first step is creating a new cargo project, just like you would for any other Rust application. Open your terminal, run cargo new rust-drum-machine, and cd into the new project folder. Open the Cargo.toml file in your code editor, and add rodio as a dependency under the [dependencies] section.
rodio 0.17+ is the most stable version as of recent updates, so I recommend sticking to that instead of using the latest bleeding-edge release to avoid unexpected bugs. You don’t need to add any other system-level dependencies if you’re on Windows or Mac, but if you’re running a Debian-based Linux distro, you may need to install libasound2-dev first to get audio playback working. I forgot to install that on my Ubuntu machine the first time I built this project, and spent 20 minutes debugging a vague compile error before I realized what was missing, so that’s a quick fix to check off first if you run into issues.
Next, create an assets folder in your project root, and drop your drum sample WAV files into it. I recommend starting with three core samples first: a kick drum, a snare drum, and a closed hi-hat. You can add more later once you have the basic functionality working, but starting small makes it easier to debug issues with specific sounds.
Coding Your First Playable Drum Hit
Open the src/main.rs file, and start by importing the required rodio modules at the top of the file. You’ll need modules for loading audio files, creating an audio stream, and playing sounds through your default output device. The first version of your code will be super simple: it will load the kick drum sample from your assets folder, play it once, and exit.
Always test your audio output with a single sample first before adding multiple drum sounds or input handling, so you can confirm your audio setup is working correctly. Use WAV files for your samples instead of MP3s to avoid decoding delays and licensing issues, and make sure your file paths in the code match the actual location of your samples. One common mistake new developers make here is forgetting to add a small sleep call after triggering the sound, so the program exits before the audio has time to play. Add a small sleep call after playing the sound for at least as long as the sample runs, and you’ll avoid that frustration entirely.
Once you have a single sound playing reliably, you can add keyboard input handling to let you play different drums by pressing different keys on your keyboard. The device_query crate makes this really simple, letting you listen for key presses in real time with just a few lines of code. I map my kick to the Z key, snare to X, and hi-hat to C, but you can use whatever key layout feels most natural to you. The latency is low enough that you can play simple beats in real time without any noticeable delay, which is part of what makes Rust such a great choice for audio projects.
Upgrading Your Rust Drum Machine With Extra Features
Once you have a basic playable drum kit working, you can tweak the project to add whatever features you want. The best part of side projects like this is that there’s no right or wrong way to expand it, so you can follow whatever interests you most. If you’re into music production, you could add a step sequencer to program and save full beat patterns. If you’re into game development, you could map the drum hits to in-game actions for a rhythm game prototype.
Start with 3-4 core drum sounds first before adding more to avoid overwhelming yourself, and test each new feature one at a time to make it easier to debug. Keep your sample files organized in a dedicated assets folder in your project root so you don’t have to hardcode long, messy file paths in your code. If you want even lower latency for live play, you can swap out rodio for the lower-level cpal crate, but that will require you to write more code to handle audio buffering yourself. That’s a great option if you want to learn more about how audio programming works under the hood, but it’s overkill for a simple fun side project.
I built a version of this drum machine for a game jam last year, and it worked perfectly for adding interactive drum tracks to a 2D rhythm game, with no performance issues even when running 8 simultaneous drum tracks at once. Rust’s memory safety and speed make it a great fit for audio applications, since you don’t have to worry about garbage collection pauses causing audio glitches mid-playback.
Playing around with audio projects is one of the most fun ways to build your Rust skills without sticking to boring tutorial drills. Once you know how to play drums in Rust, you can expand the project to fit whatever use case you have, from a simple toy for your desktop to a fully functional audio plugin for music production. Don’t be afraid to mess around with different samples, input methods, or effects – half the fun of these side projects is stumbling on cool features you didn’t plan for. If you run into issues, check the crate documentation first, and don’t hesitate to tweak sample rates or buffer sizes if you notice lag when playing notes in real time.