510k Complete Bundle

A next-generation suite of advanced MIDI sequencing and arpeggiation plugins (SEQUND, POLYLLOP, and PEACH) delivering intuitive, polyrhythmic, and polymetric control for evolving melodic, harmonic, and rhythmic composition within any DAW.

Bundle includes

SEQUND

The Next Generation Of Polyrhythmic Sequencing

SEQUND is a powerful VST/AU polyrhythmic sequencer combining -and improving- all the best features from the already successful Max4Live sequencers created by electronic musician Alexkid, redesigned in collaboration with Tadashi Tsuginomori from HY-Plugins.

It features Gate, Length, Hold, Chance, Pitch A, Pitch B, Probability A/B, Transpose, Octave, 3x assignable MIDI CC lanes, each with an individual amount of steps. It also has 2 different types of step advance modes, positive and negative swing and up to 12x patterns per preset with instant recall via MIDI.

A lot of effort has been put into creating the best user experience, focusing on results whilst maintaining the simplicity and the fun factor. Whether you want to create exciting bass-lines with subtle variations or eccentric melodies filled with groove, SEQUND’s extremely intuitive interface instantly triggers your creativity process. The peculiarities of some of its functions sets it apart from more traditional monophonic sequencers.

Two Pitch lanes and a probability lane allow you to alternate between two different melodies. Each lane has an independent length thus facilitating the generation of complex polyrhythms and evolving patterns with disconcerting ease even with “only” 16 steps available per pattern.

It also has the unique ability to set a different amount of steps per Gate lane generating the rhythm, and per Pitch lane, thus creating unexpected patterns evolving in very musical ways by shifting the gate/pitch correspondence and separating the rhythm from the melody.

The Transpose function is available before or after the scale quantisation, allowing you to shift your melody and always stay in key whatever you do. This function is also controllable via MIDI notes in real time via your keyboard. Patterns can also be recalled dynamically as “punch-in” mode via MIDI notes, simplifying the pattern chaining even when using polyrhythms.

Already a favourite of many producers because of it’s randomisation features for instant generation of sequences, it comes packed with a selection of artist presets from no less than 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 to get you started…

Learn more about SEQUND

POLLYLOP

Four Voice Polymetric Sequencer

Building on the foundation and logic of 510k's flagship sequencer SEQUND, POLYLLOP pushes things further into polyphonic and polymetric territory. Designed for those who want to go beyond simple step sequencing, POLYLLOP lets you sequence up to four independent voices—each with their own rhythm, melody, duration, and velocity lanes.

Whether you're sketching out evolving arpeggios, layering chords, or exploring shifting textures, POLYLLOP gives you plenty of control—without slowing you down.

POLYLLOP is not a synth and doesn’t generate sound—it outputs MIDI, making it ideal for controlling both soft synths and hardware setups. It integrates smoothly with all major DAWs, with clear routing instructions and a minimal interface that keeps the focus on creativity.

From chord progressions to rhythmic pulses, POLYLLOP adapts easily to a wide range of creative tasks in your production workflow.

Learn more about POLLYLOP

PEACH

Playful, precise, and polymetric. Perfect for turning simple chords into endlessly shifting arpeggios.

PEACH is a next‑generation arpeggiator plug‑in (AU/VST/VST3) designed by boutique developer 510k Arts. Unlike traditional arps locked into fixed up/down cycles, PEACH lets each lane run at its own step length, producing evolving, polymetric patterns full of groove and variation.

Following the acclaimed design philosophy of SEQUND and POLYLLOP, PEACH is intuitive, immediate, and built for creative flow. It also complements these sequencers perfectly, making it a powerful addition to any producer’s setup.

Whether you’re sketching ideas, experimenting, or performing live, PEACH gives you an organic, hands-on arpeggiation workflow unlike anything else.

Learn more about PEACH