After more than a year of development, sucofunk has released the Beatmaker’s Sketchbook, a Teensy 4.1-based sampler and sequencer. Designed as an open-source alternative to OP-1s and MPCs, it follows a “Sample, Sketch, Arrange, Play” workflow to help take your ideas from simple noodling to live performances.

In addition to the Teensy 4.1, the Beatmaker’s Sketchbook features a 24-key (two octave) keyboard, 12 functional keys, four endless rotary encoders, a 10mm fader, 2″ LCD display, and 32 LEDs. A built-in microphone and 3.5mm line-in facilitate sampling, while line out, MIDI in/out, and headphone output help connect to all of your other gear.

The project’s firmware and hardware can both be found on GitHub, and you can see it in action in the video below.