goosegrid is a browser MIDI sequencer that allows you to build looping parts quickly using a unique nesting grid system. You can quickly assemble complex parts, creative generative melodies and rhythms, and it has support for MIDI clock control and output across multiple MIDI instruments.
Goosegrid is free, browser based, and can be found at https://aceslowman.itch.io/goosegrid
Goosegrid came out of my interest in live-coding audio tools, especially ones that help in creating quick melodic ideas. The user interface is meant to be quick to use with keyboard and mouse, with a variety of keyboard shortcuts, and also supports inputting notes with an external MIDI device. It even has some tools for creating generative melodies within a given key and mode.
It does require some kind of MIDI routing to be done to connect with other tools, either using the IAC MIDI Driver for MacOS, or something like LoopMIDI for Windows. More info about this can be found in the application itself. It’s meant to connect with other MIDI tools and software, but it does have some simple audio output.
I am still periodically updating it with fixes and new features, and if you have any bugs or thoughts you want to share, please do!
Goosegrid was also featured in the The Tool Jam 3 on Itch.io.