C++ sequencer

Open-source C++ projects categorized as sequencer
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Midi Music Vst open-source Hardware
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Top 9 C++ sequencer Projects

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  1. helio-sequencer

    Libre music sequencer for desktop and mobile platforms

  2. Stream

    Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

    Stream logo

  3. score

    ossia score, an interactive sequencer for the intermedia arts

    Project mention: VST3 audio plugin format is now MIT | news.ycombinator.com | 2025-10-23

    yep, having gone through implementation of pretty much every plug-in api in existence in https://ossia.io there's no question that the whole world should just drop VST3 and move on to CLAP

  4. O_C-Phazerville

    an evolving Teensy-based Eurorack firmware project, based on O_C

  5. Polaron

    A DIY drum machine for the teensy microcontroller (hardware / software)

  6. seq66

    Seq66: Seq24-based live MIDI looper/editor. v. 0.99.22 2025-10-26. NSM support; Linux/Windows/FreeBSD; PDF manual & tutorial with Help access.

  7. super-sixteen

    Code and schematics for the Super Sixteen Eurorack sequencer

  8. cane

    A small MIDI sequencer DSL designed around vectors and euclidean rhythms (by tarpit-collective)

  9. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo

  10. LondonClockT

    Polyrhythm generator VST

  11. aodix-enhanced

    Fork of Aodix sequencer

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source sequencer projects in C++? This list will help you:

# Project Stars
1 helio-sequencer 3,360
2 score 1,932
3 O_C-Phazerville 304
4 Polaron 207
5 seq66 178
6 super-sixteen 159
7 cane 106
8 LondonClockT 28
9 aodix-enhanced 19

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