What if you could record & multi-track directly on your music keyboard while you are playing it, without ever touching a computer keyboard or mouse?
Sequetron is a program with a twist; designed as a live instrument for hands-on use, all played & controlled from where your hands are - the music keyboard. It runs from switch-on with no interaction, and converts the simplest MIDI keyboard or device into a multi-track recording, playback & looping instrument.
sequencer-like functions but is radically different to other
programs as it is completely controlled using series
of music notes called command sequences.
There is no difference between commands and music -
they are all sequences, hence the name... it can even control
A front-end instrument for ideas & inspiration... and fun!
The screen, mouse & qwerty keyboard are used for configuration & maintenance (the screen provides status info and customary flashing lights during normal operation)... but none of them are essential.
LE version running 4 sequences/tracks
Full version running 7 (of 16) sequences/tracks
The input can be any simple MIDI keyboard or device, and the
output can be any MIDI device(s) such as synthesizers, drum
machines, light displays etc.
Sequences can be recorded in real-time or step-time, played back, looped and altered (channel, velocity, pitch, mute etc.), either individually or in any combination, but unlike hardware sequencers, there is no concept of 'steps', nor do the sequences have to be monophonic; any notes & chords can be used. They can also be saved to standard MIDI files for further processing by other programs.
User-defined drum patterns with on-the-fly editing
(user-defined bass patterns/riffs also possible)
This hands-on ability to record, play & alter different
length sequences starting at different times on-the-fly gives
Sequetron an unusual syncopated feel, encouraging you to
experiment with overlaying and controlling patterns; even the
most basic 1, 2 or 3-note sequences can create something totally
Sequetron can also generate and record hotkeys,
giving full control over Windows or any application which uses
keyboard shortcuts, e.g. for stepping through a slide/video show
in time with your music.
A fully working Sample
Aid tool for sampling/auditioning MIDI instruments is
included with both full & LE versions.
The 'customary flashing lights'Configuration files for these are available in the downloads section.
Or use the sequescope as inspiration...
The built-in template window updates in real-time, and provides
a basic virtual keyboard for test-driving without the need for a
MIDI input device.
A similar system is available to remote programs or devices supporting the keyboard label link (KLink) sysex protocol, e.g. the RTastra MIDI controller shown below. The KLink spec & program are available from RTastra
A promising backing track mp3
One sequence has been pitch-locked to contrast with the others when they are shifted; slight dischord at 00:40, but this is all part of the fun. Strings at 00:50 were some rough(!) & ready improvs.
Cyclic pitch commands in action mp3
This is all running 'hands-free'; a couple of sequences are automatically switching between 2 pitch offsets.
Cyclic play & mute, cyclic pitch & time-shift mp3
Three snippets from the same session using the cyclic play & mute, cyclic pitch and time-shift commands on some existing sequences; the strings at the end were live.
Building sequences step-by-step from scratch:
(also shown in the Mk I overview video and described in the tutorial)
Minimum system requirements
Windows XP and later.
Tested ok on:-
MIDI hardware or software equivalent:-
Sequetron LE V14.10 (see below for full version) - all programs are held on the pCloud.com storage site. If there are problems downloading, check your computer's access or contact me via email address at bottom of this page.
Documentation V14.10 (required for both LE & full versions)
The documentation is an installable package, but these free-standing docs can be viewed on any platform if reqd.
Mods history for recent program changes.
Examples from users (change-log): configs, screenshots, MIDI files, icons, docs etc.
User demos (video & audio)
Contact me if you want to share anything.
The LE version is free; if you pass it on please keep the package intact. It handles fewer seqs & has less command variations than the full version, but is fully usable with no time limits or nag screens. Ideal for synths with limited polyphony, such as the microKORG.
The Full version is GBP £20. Click this PayPal link to pay, then click 'Send' and login to Paypal. Fill in the required amount and set the currency to GBP. Paypal handles currency conversions automatically.
Please also include a message or send an email to identify the payment and include the exact name you would like to use for registration.
Once payment is received, a full Sequetron registered in your name will be emailed to you. I will try and respond within 24 hours. Any problems, contact me via email address shown at bottom of page.
Why upgrade to the Full version?
Free upgrades, plus...
More features, e.g...
When started, click Settings, Ports to select your MIDI input & output devices and click Run. You no longer need to touch the PC; your music keyboard will act as a self-controlled sequencer-like instrument.
You can save this configuration so it will auto-run in future, allowing completely hands-free operation from power-on; more details in the configuration guide.
There is a troubleshooting guide if you get stuck.
Please contact me if you have any problems.
BASSMIDI driver configured with Rich Nagel's WeedsGM3 sound font.
N.B.1 BASSMIDI v1.06 is reputed to have the fastest response time, but has only been verified with Sequetron on Windows XP.
v2.02 is not recommended as it crashes Sequetron on WinXP.
The latest version as at May 2012 is v3.0 which has been verified with Sequetron on WinXP. It seems to have a similar response time to v1.06, so may be a better choice if you can't get v1.06 working (always unload old drivers and reboot before installing new ones).
If there are any problems downloading these versions from mudlord's site, my local copies are here: v1.06 v3.0
N.B.2 If you install BASSMIDI you must also install a sound font, such as WeedsGM3, otherwise the driver will not make any sounds! Once you've installed BASSMIDI, download & run WeedsGM3 to unpack it into a folder of your choice (don't use a system folder to avoid permission problems), then find the BassMidi configuration option in the Start, Programs menu and add/apply the sound font.
© Phil Tipping, 2020