potatoslicer

Tracker-Style Sequencer

A modern take on the classic tracker interface. Navigate with keyboard or mouse, enter notes by letter, and arrange patterns into songs.

Full sequencer interface

Pattern Grid

The heart of the sequencer. Rows represent time steps, columns represent channels. Type notes with your keyboard — letter, optional sharp, then octave.

  • - Beat and bar line highlighting for visual timing
  • - Velocity bars on each cell — click and drag to adjust
  • - Chord entry with + key — build multi-note events
  • - Zoom from 25% to 100% with Ctrl+scroll
  • - Auto-follow mode tracks playback position
Pattern grid with notes and beat highlighting

Transport & Controls

Full transport bar with BPM, key, scale, and quantize controls. Click values to type exact numbers or use +/- buttons.

  • - Play, pattern loop, stop, record, and rewind buttons
  • - Click-to-type BPM (20-300) and rows-per-beat
  • - Musical key and scale selection with enforce/highlight mode
  • - Global quantize grid (1/4, 1/8, 1/16, 1/32)
  • - Master volume slider with percentage display
Transport bar and controls

Order Bar

Arrange patterns into songs by ordering pattern tiles. Clone, copy, add new, delete, and reorder with dedicated buttons.

  • - Click pattern tiles to jump or queue during playback
  • - DUP duplicates a pattern at the current position
  • - COPY creates an independent copy of the pattern data
  • - +NEW adds an empty pattern to the end
  • - Move patterns left/right with arrow buttons
Order bar with pattern tiles

Column Operations

Per-channel tools in the column header let you fill, quantize, or clear entire channels with one click.

  • - Fill: populate a channel at regular intervals (1/4, 1/8, 1/16)
  • - Quantize: snap all notes to the quantize grid
  • - Clear: remove all notes from a channel in the current pattern
  • - Works on the visible pattern — non-destructive with undo
Column operation buttons in grid header

Piano & Recording

A built-in piano keyboard for auditioning sounds and recording notes into patterns. Supports free and chord modes.

  • - 8-octave piano with click-to-play and velocity control
  • - Free mode: single notes, chord mode: build chords interactively
  • - Chord bank shows chords used in the song — click to replay
  • - Recording mode captures played notes into the current pattern
  • - MIDI keyboard input routes through the same system
Piano keyboard with chord bank