Each track can have an independent length and speed to create polymetric patterns
In PER TRACK mode (PAGE SETUP menu, [FUNC]+[PAGE]), each of the 16 tracks has its own LENGTH (2–128 steps) and SPEED (1/8X to 2X multiplier of pattern BPM). When tracks have different lengths, they cycle at different rates against each other, creating polymetric or polyrhythmic textures that evolve gradually. The PATTERN column in Per Track mode sets a master CHANGE length (when a queued pattern kicks in) and RESET (when all tracks realign to step 1; INF = never resets). A common technique: set a kick on 16 steps, a melody on 15 steps — after 16×15=240 steps (15 bars) they realign. The CHANGE parameter is critical for live use: without it, a pattern set to RESET=INF never advances to the next queued pattern.
Examples
Track 1 (kick): 16 steps, 1X. Track 2 (melody): 14 steps, 1X. After 112 steps (7 bars), tracks re-align. Use RESET=INF + CHANGE=64 so the pattern switches after exactly 4 bars when you cue the next one.
Assessment
A pattern has RESET=INF and CHANGE=OFF. You cue another pattern. What happens and why? How do you fix it to make the switch happen after 2 bars?