Pattern Engine
Create, analyze, and practice skratch combinations with visual motion, guided training, local audio, MIDI control, and direction-aware preflight.
Generator · Motion Map · Training · Audio · MIDI · DLT™.
This has been a labor of love for almost two years, with a lot of ongoing development and refinement to get it where it is today.
I hope you enjoy it, and I hope it helps elevate your skratching to another level.
— GV- Updated the Pattern Engine peach-orange accent to the exact GoldVoltron site color #F2A948 (RGB 242, 169, 72).
- Updated matching translucent highlights and hover accents to the same color family for consistency with the homepage and Foundation page.
- Generator logic, DLT™, Motion Map behavior, MIDI, local audio, saved data, Time Capsule, PWA/offline behavior, navigation, and practice mechanics are unchanged.
- Reordered the Engine Status grid so Interface · Simple + Pro appears in the lower-left cell and Direction · DLT™ appears in the lower-right cell.
- Smart Skratch Logic™ in the Engine Status grid is now an accessible control that opens the existing Smart Skratch Logic™ / DLT™ information panel, giving visitors a second direct way to review how the logic works.
- Generator logic, DLT™ mechanics, Motion Map, MIDI, local audio, saved combos, Time Capsule, PWA/offline behavior, navigation, and practice mechanics are unchanged from v4.0.41.
- Moved the Pattern Engine’s main inline stylesheet ahead of the page markup so the browser has the complete layout and visual rules before it paints the interface.
- This targets the intermittent flash/reflow that could appear as a half-second hiccup when returning to Pattern Engine after navigating through other GoldVoltron pages.
- No generator logic, Smart Skratch Logic™ / DLT™, Motion Map, MIDI, local audio, saved data, Time Capsule, PWA/offline behavior, navigation, or practice mechanics changed.
- Enabled service-worker navigation preload so a normal browser visit can begin fetching the Pattern Engine while the offline worker wakes up instead of waiting for that worker to start first.
- The existing network-first HTML strategy and offline fallback are preserved, but cold returns to the Pattern Engine should no longer incur the intermittent service-worker startup pause seen after visiting other site pages.
- Generator logic, Smart Skratch Logic™ / DLT™, Motion Map, MIDI, local audio, saved data, Time Capsule, and all practice features remain unchanged.
- Removed the delayed 450 ms normal-load auto-scroll and entrance pulse that caused a brief visible hiccup after the Pattern Engine first appeared.
- Normal visits now stay at their initial page position with no second-stage entrance movement.
- Beat Library and Foundation BPM/audio handoffs still move to their intended Pattern Engine target after layout is ready; generator logic, DLT™, MIDI, local audio, saved data, Time Capsule, and PWA/offline behavior are unchanged.
- Orbit segments now show their stored click count as 1-click orbit, 2-click orbit, 3-click orbit, and so on instead of the vague label Orbit.
- The explicit Orbit wording is used in the live combo title, cue chips, Motion Map labels, scratch-term help, saved-combo presentation, practice cards, and DLT™ human-readable diagnostics.
- Orbit round-trip motion, phantom-click handling, marker placement, DLT™ solving, generator behavior, saved source data, MIDI, local audio, and all other engine mechanics are unchanged from v4.0.37.
Saved Combos
Quick access, practice rotation, and clean export
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Powered by Direction Logic Technology™ (DLT™)
Smart Skratch Logic™ is the revived name for a scratch-aware logic concept documented on djgutter.com on May 27, 2002, where an upcoming online skratch combination generator was described as incorporating Smart Skratch Logic™. In the modern Pattern Engine, that earlier idea has evolved into Direction Logic Technology™ (DLT™), the motion-aware preflight engine that follows record direction from one technique to the next and checks whether the next movement makes physical sense from where the previous movement leaves the record.
For direct verification, review the archived djgutter.com page and the preserved screenshot below. Together they show the May 27, 2002 reference to an upcoming online skratch combination generator that would incorporate Smart Skratch Logic™.
Smart Skratch Logic™ is the concept and identity; DLT™ is the current engine underneath it. A combo can look fine in text while still asking the record hand to continue in a direction that does not fit the preceding motion. DLT™ catches that before you practice it.
DLT™ checks the complete scratch sequence before the pattern is displayed.
Forward and reverse movement are evaluated against the motion state left by the previous technique.
If DLT™ finds a mismatch, it solves for a valid phrase using the fewest safe direction changes.
The proposed runtime pattern must pass a second validation before it is allowed to load.
DLT™ works on a temporary runtime copy. Stored presets and WordPress data are not rewritten when a direction is corrected.
When the record changes direction with the fader still open, the sound briefly stops at the turnaround. That tiny break is called a phantom click. You didn't actually click the fader — the change in record direction created it. DLT™ keeps phantom clicks separate from real fader clicks and silent resets.
DLT™ performs automatic record-direction continuity checks and now annotates articulation mechanics: actual fader clicks, qualifying phantom clicks, and silent resets. The corrected runtime pattern is then used consistently by Current Combo, Motion Map, practice tools, sharing, and exports.