HEADROOM

In this module, students build a foundational understanding of sound. They learn how sound is created, transmitted, perceived, recorded, and reproduced, creating the mental framework needed to understand every other topic in the course—from gain staging and EQs to mixers, speakers, signal flow, and digital audio systems.

Students begin by exploring sound as a physical phenomenon: energy moving through a medium as a pressure wave. They learn how the human body hears and feels sound, and how frequency, amplitude, and wavelength shape our perception of pitch, loudness, and physical sensation.

Students examine how vibrating objects—from musical instruments to loudspeakers—create sound waves in the air. They learn how simple waveforms combine through superposition to create the complex sounds we hear in music, and how multiple sounds are summed together both acoustically in physical space and electrically within audio systems.

This module also explores how frequency ranges, from 20 Hz to 20 kHz, are felt vs. heard. It sets the stage for why sound systems and mixers are generally stacked into low-, mid-, and high-range frequencies and the impact each of those ranges has on the audience.

The module then follows sound as it travels through the audio chain. Students learn how microphones convert pressure waves into electrical signals, how analog audio is carried over a wire, and how digital systems capture, store, and reproduce sound through sampling and playback.

By the end of the module, students will understand not only what sound is, but how sound moves through every stage of a modern audio system—from a vibrating object, to an electrical signal, to a loudspeaker, and ultimately to the listener’s body.

Building directly on the concepts introduced in Module 1, students learn how sound is represented, transmitted, processed, and reproduced throughout modern audio systems.

Students begin by exploring the relationship between sound and audio signals, learning how acoustic energy is converted into analog and digital representations that can be stored, transmitted, manipulated, and reproduced. They will develop a practical understanding of how audio moves through a system and how signal flow serves as the foundation of every DJ setup, recording studio, sound system, and live performance environment.

Students will learn how signals travel between devices, how different types of connections and cables carry audio, and why signal format and signal level make the difference between a vibey dance floor and a shouting match. Students will be introduced to common audio connections and learn the differences between analog and digital transmission, balanced and unbalanced connections, mono and stereo signals, and line-level, microphone-level, and speaker-level signals.

The module also explores how signals are modified and combined within an audio system. Students will learn what is happening fundamentally when a signal is gained, attenuated, clipped, EQ’d, filtered, routed, and mixed. By understanding audio as information moving through a chain of devices, it will become second nature for students to quickly troubleshoot equipment, feel at home in unfamiliar setups, and reason through signal-path problems.

By the end of the module, students will be able to identify, trace, and diagram signal flow through common DJ, studio, and live sound systems.

With the basics of sound and signal flow covered, Module 3 delves into specific pieces of equipment DJs are likely to encounter in club setups.

Players can range from cheap (and approachable) controllers to expensive (and equally intimidating) standalone machines. Students will learn the key tradeoffs between playing on laptop-only, controller, all-in-one, and CDJs.

Students will learn when and why to add an additional mixer to the signal path and how to properly configure reference sources and multi-performer situations to improve performance continuity.

For house parties and renegades, we’ll cover the basics of power distribution, batteries, and generators—how to set things up to prevent blow ups or shut downs.

In addition to covering the kinds of systems students will find in clubs, Module 3 also covers DIY setups from small travel-sized kits to block-party-sized setups that can still travel in the back of a car. It’s crucial for DJs to understand the differences in sound reproduction across different types of systems: why it’s important to create a stereo field, how crossovers can be used to maximize dynamic range, increase detail, and create more energy.

It’s also important to protect gear and set it up comfortably. We’ll spend some time talking about the importance of ergonomics and how to optimize for portability without sacrificing quality. Along the same vein, students will learn about battery-powered speaker setups and wireless setups too.

Students will learn the importance of being adaptable with different equipment as well as how to think modularly about each piece of gear in the chain. They’ll also develop their go bag of adapters and cables they never go to a gig without.

Module 4 focuses on the defining characteristics of a track. This is the prerequisite to Module 5, which then uses these characteristics to develop music preparation skills.

Students will first cover the very basics of how notes are put together into bars/measures and how bars build into phrases and ultimately compose the entire song’s structure. Electronic music is particularly formulaic but this module will explore how other genres are composed and how different genres can be mixed to create dynamic range and variety.

Module 4 covers the nuances of pitch and tempo: the intricacies of when and why to use Master Tempo, when and how to naturally speed up or slow down and by how much, and if all the controversy around beat sync and being able to beat match by ear is warranted.

Module 4 introduces the fundamentals of digital files: why there are different formats, and what the differences are between them. Core to this understanding is explaining how an encoder works to compress music and how quiet details, transients, reverb tails, and spatial information are lost in the process. A DJ is ultimately responsible for the way the dance floor feels. Big systems expose details that are often missed on headphones, car stereos, and small sound systems. With sound as a DJ’s medium, every step of the chain matters and the quality of the audio signal is critical. Lossless files can even reduce psycho-acoustic fatigue during long sets.

Beyond signal quality differences, choosing the right file format also affects track preparation as certain file formats don’t always read and write track metadata consistently across devices. In this module, students will learn what an ID3 tag is and how it can be used to create more portability, reduce data loss, and improve workflow efficiency.

Module 5 covers file system hygiene: why it’s important to know where your music files live and where the metadata about those tracks lives. Students will be able to apply these skills to prevent data loss, improve sanity and efficiency, as well as to make their library more portable between ecosystems.

Students will learn how to systematically prepare tracks to unlock ease and flow behind the decks. From using pre-library tools like Platinum Notes or Mixed In Key to ensuring proper beat grids and hot cues, students will dramatically improve their performing experience.

In this module, students will learn how to organize the tracks in their library. This module unlocks the power of intelligent/smart playlists and how they can be used in conjunction with static playlists to improvise or to play a more prepared setlist. By the end of this module, students will gain confidence in knowing how many tracks to prepare for different styles of gigs and have new organizational systems that eliminate stress while improvising. These systems include being able to find tracks by concrete attributes like lyrics, genre, tempo, key, but also by more subjective attributes like vibe, tag, and acoustic similarity.

Finally, for when it comes time to play, this module introduces the “pre-flight checklist.” Just like pilots don’t take off without checking all critical systems, in this module students will learn how to systematically check in before they start playing to ensure that they’re locked in from the moment they press play.

This module will start with a fairly exhaustive review of common music players: DDJ-FLX4, XDJ-RX3, CDJ-3000. We’ll also look at non-Pioneer/AlphaTheta products to compare and contrast features. Versatility is important and it’s important for students to understand the tools they want and need and seek them out vs. accept what a company decides they need and be content.

Students will also be exposed to different styles of mixers. Mixers differ by far more than simply how many channels are available. We’ll look into all the features that may or may not exist on a mixer to further deepen the student’s adaptability.

There are an infinite number of ways to mix two tracks together, largely dependent on performance style, environment, and genre, however, Module 6 covers the core concepts that can be adapted by each student. For example, students will learn when and how using more than two decks can create deeper continuity and increase energy by preserving sounds that are holding the dance floor. Students will also learn reliable methods to transition between broader genres and tempo ranges.

This module also covers more advanced looping and positioning techniques like auto-looping, loop rolls, hot-cue jumping, and loop builds.

This module will not teach every possible mixing trick because there are infinite, but it will point students to external resources to further their practice.

In the crowded, chaotic, and often over-hyped world of being a DJ, interacting with others is a core competency that is often overlooked. In this module, students will learn how to present themselves and interact with their colleagues and peers in ways that open doors.

Starting at the decks, students will learn how to treat equipment like an extension of a person’s body. Students will learn how to apply the principles of consent to the decks, resulting in smoother hand-offs between DJs. These principles will also give students a leg up in being easy to work with and result in developing better reputations and being invited to play more gigs.

Module 7 will also cover the relationship between the DJ and the crowd. Students will learn the importance of always meeting their audience where they are at and how to earn their trust in taking them on a journey. At the core of this lesson is understanding the differences between “playing what I want to play” vs. “playing what they want to play” and how to mix these two modalities to stay authentic and connect to the audience.

The last module is dedicated to the performance aspect of being a DJ, which is often overlooked by amateur and self-taught DJs, who have no training as performers.

Students will learn how to prepare themselves for a show. This goes beyond set prep. How do you practice your set and key moments? What is your day-before/day-of routine to get into the right headspace? A rider isn’t about being VIP, it’s about acknowledging that you’re about to really give of yourself to a group and that it takes something to do that. We’ll look at examples of ways performers can stay grounded and students will be inspired to develop their own preparatory routines.

Students will then learn how to take the stage: how to take the pulse of the room before getting onstage and how to take the reins from a previous performer. We’ll discuss the advantages and disadvantages of playing continuously through from a previous set.

Students will then learn how to create an engaging, slot-appropriate performance as well as how to take moments for self- or other-promotion (e.g., getting on the mic, acknowledging openers).

Students will also learn how to close. This isn’t just about choosing the last track. This is about the difference between a comedown close and a big-finish close and how the choice depends on the slot and the event.

Lastly, students will learn how to tear down and handle post-show self-care. How to nourish themselves and also what post-show actions may be necessary (e.g., posting a recording of the set, social media).