On Sample Atlas, select a sound and click ＋ SEND TO POCKET BUILDER. Move layers with ↑ and ↓ (or drag a row by its handle). Colored steps show the drum type. Click squares to place hits. Each column is a 16th note; swing delays offbeat 16ths. Patterns are saved in this browser. Export makes two repeats of your 16-step pattern (8 quarter-note beats): one synchronized WAV per unmuted, programmed sample plus an identical-length full mix. Every file starts at bar 1, beat 1.
Combined pocket visualization
Each colored spike represents a programmed hit. The outline shows the combined transient envelope; the vertical line follows playback. This is a timing visualization, not a full psychoacoustic measurement.