51:52
New
Every OP‑XY update since launch (firmware 1.0.9 to 1.2.0)
Two years of OP-XY firmware in one video.
Watch now
Music technology · Scotland
Synth tutorials, live jams and free tools for making music.
I'm Chris. I make in-depth guides to Teenage Engineering gear and other instruments, jam live on the channel, and build open-source software for musicians.
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Latest video
51:52
New
Every OP‑XY update since launch (firmware 1.0.9 to 1.2.0)
Two years of OP-XY firmware in one video.
Watch now
Start here
The big ones
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3:27:02
01
OP‑XY Video Manual
This is a comprehensive guide to the OP-XY from Teenage Engineering, covering all functionality.
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20:35
02
EP‑133 KO II Tips and Tricks
In this video, I'm going over some tips and tricks for the KOII. These are little things that I've learned while making music or that I got from the manual.
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19:02
03
Programming with MIDI in Python | Getting started and sending MIDI Messages
In this video, we're going to explore how MIDI works and write some simple programmes in Python to control a MIDI device.
The library
Every video
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51:52
Every OP‑XY update since launch (firmware 1.0.9 to 1.2.0)
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Short
2:36
OP‑XY Firmware 1.0.25 Released
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Short
0:56
New firmware update for the OP‑XY (1.0.21)
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Live stream
2:23:20
Making chiptunes by combining Pocket Operators and the OP‑XY!
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7:40
Channel Update and Plans for 2025
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Live stream
2:26:48
Making WipEout inspired techno with the OP‑XY!
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3:27:02
OP‑XY Video Manual
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22:19
Using step components to make generative ambient music on the OP‑XY
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Live stream
2:47:34
Making generative ambient on the OP‑XY
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Live stream
2:19:11
Exploring the synth engines and making presets for the OP‑XY
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Short
0:14
New update for the OP‑XY (1.0.13)
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4:22
Workaround for OP‑XY Brain Bug (firmware 1.0.9)
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7:50
Live "Mystical Whistling" on the OP‑XY
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Short
0:13
EP133 KOII Update 1.2.1
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21:17
More EP‑133 KO II Tips and Tricks
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18:27
Small changes can make your life much better! | 1,000 subscriber special
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3:27
Tape track madness on the OP‑Z!
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Short
0:19
Tape track madness on the opz!
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Short
0:48
Ep133 processing power doubled in future update? More features and FX!
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Short
0:30
This is my vocoder song...
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4:58
Using the SP‑404MKII as a vocoder!
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26:31
Every function at your finger tips: MIDI Surf, the free web-based MIDI controller.
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Short
0:13
Vangelis inspired synth line!
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Short
0:12
Tremolo on the EP‑133 K.O. II
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Short
0:49
Channel Brian Eno with this patch!
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Short
1:00
New update (1.1.2) for the EP 133 KO II!
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5:02
OP‑Z Live Performance: Making a long flight fun!
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51:35
Programming a synth in Rust using CPAL and FunDSP!
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4:16
EP‑133 K.O. II Live Performance 2: Starting to get more comfortable with it!
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20:35
EP‑133 KO II Tips and Tricks
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Live stream
2:46:08
Unboxing and assembling the Pocket Operator Modular 400!
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11:33
Sequencing Bela Lugosi with the OP‑Z
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17:22
Unlocking the full power of the SP404mkII with some MIDI magic!
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17:15
Total control over your OP‑Z with MIDI Surf (it's totally free!)
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7:32
The "Hands On" Update for MIDI Surf is out now! XY faders, customisable buttons, pitch bend...
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9:31
Programming with MIDI in Python | Responding to MIDI Messages
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Short
0:58
XY Faders are coming to MIDI Surf! Look out for the "Hands On" update.
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15:00
MIDI Surf: A free, web-based, customisable MIDI controller!
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19:02
Programming with MIDI in Python | Getting started and sending MIDI Messages
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16:45
Chords mode in OP‑Z app! (and how to make a Videopak)
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7:16
Easy fix for OP‑Z double trigs! Warning: Read description first!
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3:51
Thump ~ Digitone + Neutron
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Short
1:00
The OP‑Z can reverse time!
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12:21
Get more drums for fewer tracks, trigs and voices ~ Elektron Digitone
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3:39
The Transfer ~ OP‑Z
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2:40
Sunshine Stroll ~ Elektron Digitone
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3:03
Crowd ~ Elektron Digitone
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Open source
Things I've made
Everything I build is free and open source. Use it, fork it, send a pull request.
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MIDI Surf
LiveA customisable MIDI controller that runs in your browser, on phones and tablets too, and works offline. Faders, XY pads, chord banks and isomorphic keyboards, and you can share presets as a link.
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Lattice
In developmentA keyboard-driven audio tracker inspired by Vim. Baffling at first, then fun, then no gap at all between a musical idea and a finished song.
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FunDSP synth example
Open sourceA minimal example of making sound in Rust with FunDSP and CPAL, written alongside the video tutorial. A small, hackable starting point for audio programming.
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Chords Videopak
Open sourceAn extension for the OP-Z app that lets you play chords in different keys, modes and forms, controlled from the OP-Z's Motion track.
About
A one-person music tech company
Mo Chreach! Music Technology Ltd is a small company based in Scotland, set up in 2023 to make software for audio. That sounds grand, but really it's just me: I'm passionate about music and technology, and I love making things.
The channel started as a place to share songs and tutorials, and grew into long, careful guides to the instruments I use, like the OP-XY video manual, with chapters for every feature. Alongside that there are live jams, coding tutorials for audio and MIDI, and videos about the tools I build.
Mo chreach! is Scottish Gaelic, roughly "my ruin!": an old cry of dismay, and a fair description of what happens to your bank balance once you get into synths.
Support the channel
Keep the videos coming
Everything here is free. If it's helped you, these keep it that way.
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Patreon
Monthly support, and early access to new software as it reaches alpha.
Join on Patreon -
Ko-fi
Send a one-off tip. No subscription, just a thank-you when a video helped.
Visit Ko-fi -
Channel membership
Become a member on YouTube for perks and members-only videos.
Join on YouTube
Community
Come and say hello
Questions about a video, a bug in MIDI Surf, or just want to share what you're making? The Discord is the best place. For anything else, email me.