

THE LAB
Contraptions, Experiments, Musings, and Miscellany
The Connect 4 Musical Instrument
Music
Game Design
Sound
Musical Instrument Design
AI
Play and make music online
The Connect 4 Musical Instrument transforms a classic game of Connect 4 into a live musical performance. Two players face off in a standard game, but with each move, they collaboratively generate a unique musical composition.
The red player triggers the drum patterns, while the yellow player controls the melodic sequences. As the game progresses, lights flash to indicate the rhythm and position of each beat in the musical grid.
For red:
Each row controls a different piece of the drum kit. The bottom row controls the kick drum and the rows ascend as follows: snare, high hat, crash symbol, ride symbol, and cross stick snare.
For yellow:
Each row controls a different instrument sound, and each column plays a different pitch within one octave. Each row ascends one octave the previous one, so that the pitches you hear pitches climb as the game progresses and you enter new rows. The bottom row plays bass, then a different synthesizer sound (including bells, strings, and more) is heard on each row as the game continues.
The Real Thing:
This game also exists in a physical form (using a giant Connect 4 board modified with RFID cards, card readers, and LEDs). For questions (or if you’d like to bring giant Connect 4 to your next event), please email ben [dot] einstein [at] gmail [dot] com.
Try it out yourself!
Play against a computer or a friend in the AI-vibe coded, HTML version of the game
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Maker Faire Presentation
Here is my presentation at Maker Faire 2025, which includes an explanation of the project and an interactive demo of the game between two audience members
Launch video for the online version of the game.

