How to Use Serato STEMS on XDJ-AZ & RX3 + USB Workflow for CDJs (Ableton Guide)

Music Gear Mondays

STEMS have completely changed the way DJs can perform—giving you the ability to isolate vocals, drums, bass, and melodies in real time.

In this episode of Music Gear Mondays, we’re breaking down how to use STEMS with the AlphaTheta XDJ-AZ and Pioneer DJ XDJ-RX3 using Serato DJ Pro, plus a bonus workflow for creating your own stemmed tracks in Ableton and exporting them to USB for CDJ use.

Using STEMS on XDJ-AZ & XDJ-RX3 (Serato DJ Pro)

Both the AlphaTheta XDJ-AZ and Pioneer DJ XDJ-RX3 can access STEMS when connected to Serato DJ Pro.

Quick Activation:

• Press SHIFT + BEAT LOOP

• This toggles STEMS mode

From there you can:

• Isolate vocals

• Remove drums

• Create live mashups

MIDI Mapping STEMS (RX3 Only)

If you're using the RX3, you can take things a step further by MIDI mapping STEM controls directly inside Serato.

This allows you to:

• Map STEMS to performance pads

• Replace unused pad modes

• Get faster, more hands-on control

Note: The XDJ-AZ does not support the same MIDI mapping flexibility in Serato.

Serato Reference Guides

Here are the exact resources from Serato:

• https://support.serato.com/hc/en-us/articles/11432163206415-AlphaTheta-XDJ-AZ-Quick-Start-Guide

• https://support.serato.com/hc/en-us/articles/5700970589583-Controlling-Stems-with-your-DJ-hardware

• https://support.serato.com/hc/en-us/articles/7783089048079-Replace-Accessory-Hardware-Pad-mode-with-Stems-compatibility-list-for-Serato-DJ-Pro

MIDI Mapping Tutorial

Performance Ideas Using STEMS

• Blend vocals over instrumentals

• Remove drums for smooth transitions

• Extend intros and breakdowns

• Create live mashups

This workflow is especially effective for House, Funk, Amapiano, and Hip-Hop sets.

Creating Your Own STEMS in Ableton (For CDJs)

Using Ableton Live, you can prepare your own stem-style DJ edits.

Workflow:

1. Import your track into Ableton

2. Split into:

   • Drums

   • Bass

   • Melody

   • Vocals

3. Export:

   • Instrumental

   • Acapella

   • Drum-only versions

Ableton STEMS Tutorial

Rekordbox + USB Export Workflow

1. Import into Rekordbox

2. Analyze tracks

3. Set cue points

4. Build your playlist

Important: Make sure to render your playlist before exporting to USB so everything is properly analyzed.

Final Step

• Export to USB

• Plug into CDJs

• Mix your custom stem versions live

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