Affiliate disclosure: the "Get this deal" button is an affiliate link to the store. If you buy through it we earn a commission at no extra cost to you. Full policy
The 510k SEQUND + POLYLLOP Bundle Black Friday deal puts two MIDI sequencer plugins from 510k into one package, with 48% off and a bundle price of $51 until Nov 12, 2026.
SEQUND is a polyrhythmic sequencer in VST/AU format. POLYLLOP is a four-voice polymetric sequencer built on SEQUND's logic. Neither makes sound on its own.
SEQUND came out of the Max4Live sequencers made by electronic musician Alexkid. It was redesigned with Tadashi Tsuginomori from HY-Plugins, who brought the earlier ideas into a plugin.
POLYLLOP builds on that foundation and moves into polyphonic territory. It sequences up to four independent voices at once.
POLYLLOP is not a synth. It outputs MIDI, so it can drive soft synths and hardware, and the maker says it works with all major DAWs.
SEQUND gives you these lanes, each with its own step count:
Because every lane has its own length, even 16 steps per pattern can drift into long, evolving polyrhythms. You can also give the Gate lane a different step count than the Pitch lanes. That shifts which gate hits which pitch and separates rhythm from melody.
Transpose can run before or after scale quantisation, so a melody stays in key as you shift it. It also responds to MIDI notes in real time from your keyboard.
SEQUND offers two step advance modes, positive and negative swing, and up to 12 patterns per preset. MIDI notes recall patterns instantly, including a punch-in mode for chaining patterns under polyrhythms.
It ships with artist presets from Alexander Kowalski, Arno, Brawther, Christian Burkhardt, Cristi Cons, Cyrk, D'Julz, Goldmoon, Janeret, Josh Wink, Katie Drover, Okain, Oshana, Reboot, Robin Ordell, Rodriguez Jr., Soela, tINI and Tripmastaz.
POLYLLOP gives each of its four voices lanes for Gate, Pitch, Length, Hold and Velocity. Every lane has adjustable length and its own playback mode.
The maker also lists Scale-Dependent and Classic transpose modes.
On Mac, you need macOS 10.14 or higher, 64-bit only, with Intel and Apple Silicon supported. Formats are VST2, VST3 and AUv3.
On Windows, you need Windows 10, 64-bit only, with VST2 and VST3.
AUv3 is for Logic Pro users only. Neither plugin works with GarageBand or Reason.
Yes. The 510k SEQUND + POLYLLOP Bundle carries 48% off for Black Friday, bringing it to $51. The deal ends Nov 12, 2026. Both sequencer plugins are covered, so you get SEQUND and POLYLLOP together.
No. POLYLLOP is not a synth and outputs MIDI, which suits both soft synths and hardware setups. SEQUND is a sequencer with Gate, Pitch and CC lanes, so you pair either one with a sound source of your choice.
On Mac you get VST2, VST3 and AUv3, with Intel and Apple Silicon supported on macOS 10.14 or higher. On Windows 10 you get VST2 and VST3. Everything is 64-bit only. AUv3 is for Logic Pro users only.
SEQUND is a polyrhythmic sequencer with Pitch A and B lanes, a probability lane and three MIDI CC lanes. POLYLLOP sequences up to four independent voices, each with Gate, Pitch, Length, Hold and Velocity lanes and its own play modes.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.