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Last update: April 02, 2026

Slocum tracker

About

Slocum Tracker is a JavaScript-based application that allows you to compose music for the Atari 2600 using a tracker style interface.

Slocum Tracker gets its name from the fact that it exports its output into assembly code which can be fed to Paul Slocums Sequencer Kit (an audio driver that allows you to sequence sounds within a musical context).

Slocum Tracker as such outputs no sound by itself, but rather the instructions that can be compiled alongside Slocums audio driver so you can listen to the results in an emulator / actual Atari 2600. Slocum Tracker basically leverages the fact that having to write music directly into assembly language can be a tad annoyi... er, slows down the creative juices.

In a few words, Slocum Tracker is a specialized tracker for composing music for the Atari 2600. Unlike traditional trackers that produce MOD, XM, or S3M files, Slocum Tracker generates music data compatible with Paul Slocum's Sequencer Kit, a music driver used in Atari 2600 homebrew development.

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