# Main - Haptic Grain Scrubber - SignalPath Patch: [[Patches/Main - Haptic Grain Scrubber]] ## Overview The Mother-32 fills the Beads buffer, then you freeze it. The BeetTweek scrubs the playback position by hand, Stages slowly wobbles the grain pitch, and the left side gets a PT2399 echo. The A-540 sends it out. Echo jack silk-screen is check panel. ```mermaid flowchart LR M32[Mother-32 sequence] --> B[Beads frozen grains] BT[BeetTweek ratchet] --> B St[Stages slow LFO] --> B B -- "L" --> E[Echo] E --> O[A-540 line out] B -- "R" --> O linkStyle 0 stroke:#e0b800,stroke-width:3px linkStyle 1 stroke:#1e63d6,stroke-width:3px linkStyle 2 stroke:#1e63d6,stroke-width:3px linkStyle 3 stroke:#e0b800,stroke-width:3px linkStyle 4 stroke:#e0b800,stroke-width:3px linkStyle 5 stroke:#e0b800,stroke-width:3px ``` **Cable colors:** [[Cable Colors]] after [Learning Modular](https://learningmodular.com/choosing-patch-cables/): ⚪ Gray 1 V/oct · 🔵 Blue modulation · 🟡 Yellow audio · 🔴 Red gates/triggers · 🟢 Green clock/sync · ⚫ Black external ## Why it's a frozen snapshot Any busy 16-step Mother-32 pattern with a bright filter fills Beads through IN L. Once a bar or two is in the buffer, engage FREEZE and stop the sequencer or turn VOLUME down. DRY/WET is fully clockwise, since the input is frozen anyway. Latched grains, high DENSITY and a medium SIZE smear that snapshot. ## Why it scrubs by hand BeetTweek is in Ratchet Mode, with output A's spring-trail augment set to −5 V to 5 V, patched to Beads TIME. The TIME attenurandomizer sits past noon so that CV can move it. Turn the knob against the ratchet: the further you wind it, the further back in the buffer the grains read. Let go and it springs back, and you feel the pull in your hand. ## Why left and right differ Beads L goes through the Synthrotek Echo, a PT2399 delay, then to the A-540's left channel, so that side is dark and warbly. Beads R goes dry to the right channel. Stages segment 1, a slow looping RAMP, is on Beads PITCH with the attenurandomizer only slightly up, so the grains get a slight wobble. That cable is blue because it is CV into a Beads parameter, not a 1 V/oct jack (a judgment call in the patch note). ## Short version The Mother-32 is the sample, Beads is the tape, and the BeetTweek is your finger on the reel.