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Step Sequencer Plugin by Sugar Bytes
Thesys by Sugar Bytes is a Virtual Instrument Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin and an AAX Plugin.
Requires Windows 7 or higher
Requires macOS 10.12 or higher
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My KVR - Groups, Versions, & More
154 KVR members have added Thesys to 26 My KVR groups 191 times.
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Overall: 2550   1989   2446

30-Day: 2705; 7-Day: 1597; Yesterday: 5813

Thesys is a powerful and intuitive MIDI step-sequencer plug-in, giving you control over just about all aspects of your favorite MIDI devices. You can use Eloquence to create varied and organic bass lines, screaming leads, pulsating chords, and organic pad sounds in the studio or on stage.

For live musicians, Thesys provides a versatile palette of performance options which can be triggered right from your MIDI keyboard: you can transpose, manipulate, twist up, mutate, and mangle your patterns without even getting near your computer.

Sequencer Tracks:

  • Pitch: The pitch sequencer works in relation to the root key and transposes it by +/- 12 semitones.
    In scale mode, the sequencer-entries work in-scale, that might exceed the octave range of the sequencer by quite a few octaves. In addition, the pitch sequencer has a flexible recording function.
  • Lock: Lock is part of the pitch sequencer. An active step deactivates the MIDI transposing. This is useful for keeping important notes and chords in key while transposing the sequence.
  • Gate: The Gate Sequencer creates notes and determines their velocity.
  • Mute: The Mute Sequencer is part of the Gate Sequencer and mutes the selected step.
  • Gate Time: The Gate Time Sequencer determines how long a note is held. Notes can be held up to four times the duration of a step.
  • Octave: This sequencer moves the pitch the pitch by +/- 2 octaves.
  • Pitchbend: Here you can select from 12 pitch bend figures to be engaged.
  • Chord: A Chord is generated using the current note in the pitch sequencer as the root note. Six Variations and four wrap-arounds for major and minor plus six special chords like diminished and augmented are available.
  • Break: This sequencer lets you set a multi-trigger at 2, 3, or 4 times the normal sequencer speed, playing the current scale up or downwards or just repeating the current note. 18 breaks are available.
  • Random: Each sequencer step can be replaced by a random value. Minor and major chords can be individually randomized to maintain the harmonic structure.

Action Section:

  • Gate Time: The Gate Time can be increased or decreased, depending on how long you press the button.
  • Velo Gate: The note will only play if it is above the selected velocity threshold.
  • Looper: The selected part of the sequence will be looped.
  • Slowdown: The sequence slows down until it comes to a dead stop.
  • Retrigger: Re-trigger the sequence by re-trigger-pressing the button; upon release, the sequencer continues at its normal position.
  • Halftime: The sequence will play at half speed.
  • Octave Up: The sequence will play one octave higher as long as you press the button.
  • Mute: Mutes all data output.


  • Internal synthesizer to create patterns on the fly.
  • Special workaround for sending MIDI with the AU plug-in.
  • Instant keyboard control for Transpose, Pattern Select, Action Section.
  • Pattern Sequencer.
  • Sample-accurate timing.
  • Individual trigger and sync options, swing function.

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Comments & Discussion for Sugar Bytes Thesys

Discussion: Active
Abraham J
Abraham J
17 November 2013 at 10:53am


Does anyone know the definitive way to 'wire' in Thesys to Cubase 7?


17 November 2013 at 2:00pm

Sure! You load it in the instrument rack, and then select it as MIDI input in any MIDI or instrument track you'd like to control. For MIDI control of thesys itself, make a MIDI track and select it as output.

Abraham J
Abraham J
17 November 2013 at 8:37pm

T-CM11 thanks for your help.

14 May 2014 at 12:53pm

This is really a hot discussion in this forum ... I hope that it is not too sleepy for somone to find that post:

And the question is: would it be possible to run different sequences at one time in parallel with one instance of TheSys, e.g. have different loops independently from on another. with different length and velocities ... ?

14 May 2014 at 1:01pm

No, it's monophonic.

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