Python Step Sequencer

A 16-step music sequencer built in Python with pattern management and audio playback.

Features

• Load .wav samples from organized directory structure
• Create and edit 16-step patterns with multiple instruments
• Save and load multiple patterns
• Real-time playback with adjustable BPM
• Support for 31+ simultaneous instrument tracks

Requirements

• Python 3.13+
• pygame

Installation

pip install pygame

Usage

from sounds import SoundLibrary
from sequencer import Sequencer
from looper import Looper

library = SoundLibrary()
seq = Sequencer()
looper = Looper(library)

# Create a pattern
seq.current_pattern.set_steps("kick", [1, 5, 9, 13])
seq.current_pattern.set_steps("snare", [5, 13])

# Play it
looper.play_pattern(seq.current_pattern, bpm=120, num_loops=2)

Project Structure

• sounds.py - Sound library management
• pattern.py - Pattern class for storing instrument tracks
• sequencer.py - Sequencer class for managing multiple patterns
• playback.py - Audio playback using pygame
• looper.py - Timing and pattern playback loop

Roadmap

• tkinter GUI with visual grid
• Pattern chaining
• Tempo automation
• Export to audio file