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Manual

TrapMan User Manual

v1.0.3 · Released Jul 28, 2026 · Applies to AU & VST3

TrapMan is a drum sampler and sequencer built for trap and hip-hop production. One window holds your sample lanes, a step grid, a linked piano roll, a sample editor, a pattern arranger and drag-and-drop export into your DAW. This manual covers every feature, top to bottom.

01Activation & trial

TrapMan loads as an instrument in your DAW — AU and VST3 on macOS 13+ (Apple Silicon and Intel), VST3 on Windows. Until a licence is active the plugin shows the licence screen and stays silent.

  • Enter your key (TRPM-XXXX-XXXX-XXXX) and hit Activate.
  • No key yet? Get free trial starts a 7-day trial — one machine per trial, two machines per paid licence.
  • Once activated, TrapMan keeps working offline. Moving to a new computer? Preferences → About → Revoke licence for this computer, then activate on the new machine.
TrapMan licence screen: key field, Activate and Buy a licence buttons
The licence screen — here after a trial has expired.

02Interface tour

The window (resizable, default 1160 × 550) splits into six zones:

  1. Top bar — library toggle, preferences, Master Tune, pattern length & grid, pattern selector, Slow / Slap, MIDI OUT / AUDIO OUT.
  2. Library — a slide-in browser on the left.
  3. Lane panel — one row per sample: name, color, mute/solo, volume, pan, meter.
  4. Pattern grid — the step sequencer, aligned with the lanes.
  5. Bottom panel — the Piano Roll or the Pattern Chain (tabs on the right; clicking the active tab collapses the panel).
  6. Zoom bars — drag the ends to zoom, the middle to scroll.

Every divider between zones is draggable. Almost everything is undoable with ⌘Z / ⌘⇧Z, and the spacebar always drives your DAW's transport, never the plugin.

The full TrapMan window: top bar, lane panel, pattern grid and piano roll
The six zones of the TrapMan window.

03The top bar

The TrapMan top bar: Library, preferences, TUNE, LENGTH, GRID, follow, pattern selector, Slow, Slap, MIDI OUT and AUDIO OUT
Left to right: Library · preferences · TUNE · LENGTH · GRID · follow · pattern · Slow · Slap · exports.
ControlWhat it does
LibraryOpens / closes the sample browser.
Opens Preferences (themes, UI zoom, MIDI octave, shortcut guide, licence).
TUNEMaster Tune, −12…+12 semitones — retunes the whole kit to your song key.
LENGTHPattern length: 1, 2, 4, 8 or 16 bars.
GRIDStep resolution, 1/4 → 1/128 with triplets.
Follow mode — auto-scrolls the grid and piano roll with the playhead.
PatternCurrent pattern. Click for the pattern list, right-click for quick actions, drag it into the Pattern Chain.
Slow / SlapThe two bus effects — see section 11.
MIDI / AUDIO OUTDrag straight into your DAW to export — see section 14.

Knob gestures everywhere: drag vertically to set, -drag for fine control, right-click / -click / double-click to reset. Ctrl + scroll steps through the GRID and CUT menus without opening them.

04Lanes

Each lane holds one sample (WAV, AIF/AIFF, MP3, FLAC) — up to 16 lanes per project.

  • Color chip = mute toggle. S = solo. Click the name to preview the sample.
  • Volume fader (−∞ to +6 dB) with built-in meter and a clip light — click the light to clear it. Pan knob with a center detent. -click either to reset; with several lanes selected, both move as a group.
  • Reorder by dragging a row; hold to duplicate instead (⌘D works too — the copy carries the sample, settings and notes in every pattern).
  • Load samples by dropping files on a lane (replaces its sample) or below the lanes (creates new ones), by double-clicking in the Library, or via right-click → Load Sample….
  • Fills — numpad 16 on the selected lane write instant patterns: every step, every 2/4/8 steps, a 2-&-4 backbeat, or every half bar.
  • A red name means the file went missing — click it to relocate, or right-click → Locate All Missing to fix every lane from one folder scan. Saved projects embed a copy of each sample, so recent projects keep playing regardless.
The lane panel: color chips, solo buttons, volume faders and pan knobs
The lane panel with a loaded kit.

05Library & Smart Folders

Add your sample folders with + Folder (or drop them straight into the drawer). One click previews a sound — the preview runs through the active Slow/Slap chain, so you hear it in context. Double-click loads it into the selected lane.

  • Search filters as you type across every folder.
  • Favorites (right-click) plus a star filter in the header.
  • Colors tag folders and files for quick scanning.

Smart Folders classify your whole library automatically — filename analysis first, then a neural network on the audio itself — into 12 categories: 808s, Bass, Kicks, Snares, Claps, Closed Hats, Open Hats & Cymbals, Percs, Rim Shots, Loops, Melodic, FX. Opening one lists its sounds in random order — built for digging. Re-run the analysis anytime with Preferences → Library → Rescan Library.

The library drawer with search, favorites star and the 12 Smart Folders
Smart Folders sit above your own folders.

06Sample editor

Right-click a lane → Edit Sample…. The waveform shows the sound exactly as it will play; drag the triangular handles for fade-in/out, pinch to zoom, click to preview, or drop a new file on it to swap the sample.

ControlRangeNotes
Start / Endtrim rangeTurn Start below zero for up to 100 ms of pre-roll silence — sits an 808 behind the beat.
Pitch±24 stSnaps to semitones; hold Ctrl for cents.
Attack / Decay / Sustain / Release0–500 / 0–1000 ms / 0–100 % / 0–1000 msActive when Envelope is on.
Low Cut / High Cut20 Hz – 20 kHzPer-lane filters; at the extremes they're off.
Glide0–1000 msRequires Mono — used by 808 slides.

Toggles: Mono (a new hit cuts the previous one — default, the classic 808 / hat behavior), One-Shot (sample rings out regardless of note length; turn off to gate it to the note), Envelope, Normalize. -click any knob to reset it.

The sample editor on an 808: waveform, Start/End, Glide, Pitch and envelope knobs
The sample editor overlay.

07Pattern grid

Left-click paints steps, right-click erases — velocity shows as a bar inside each step.
  • Click an empty cell to add a step; keep dragging to paint. Right-click erases the same way — fast passes never skip cells.
  • -drag up/down on a step sets its velocity ( for fine). -click resets it to 100.
  • -click / -drag selects; drag a selected step to move everything; hold to drop a copy. ⌘A selects the pattern.
  • ⌘C / ⌘V copy & paste — while stopped, click the ruler to place the paste cursor. ⌘R replicates the selection right after itself and grows the pattern automatically (1 → 2 → 4 → 8 → 16 bars) when it overflows.
  • ⌥U splits every event in the pattern at the current grid.

08Piano roll

The piano roll edits the selected lane melodically; other lanes show as gray ghosts. Notes snap softly — within 8 px of a grid line they lock on, otherwise they land free. Hold while dragging for fully free placement, drag a note's edge to resize, and use the left keyboard to audition pitches.

  • Velocity lane (the VELOCITY button): draw absolute values with no selection, or drag a selection to offset it while keeping its shape. -click resets to 100.
  • Hat rolls: select notes, ⌘U subdivides them at the CUT resolution. ⌘⇧U does the same but walks each slice down a semitone — an instant descending roll.
  • 808 slides: select a note and press S. A slide note re-attacks the sample but its pitch glides in from the previous note — glide time is the note's own length. Slides need the lane's Mono mode (on by default).
  • Transpose / nudge: semitone, ⇧↑⇧↓ octave, grid step, ⇧←⇧→ a bar.
  • The number row sets the piano-roll grid on the fly; + scroll zooms vertically, ⌥⌘ + scroll horizontally.
The piano roll editing an 808 melody line
The piano roll edits the selected lane; press S on a note to make it slide.

09Patterns

A project holds up to 24 patterns, each with its own length, color, name — and its own Slow state. Click the pattern selector for the list: click to switch, drag the grip to reorder, trash to delete, right-click to recolor. Right-click the selector itself for New, Rename (emoji supported 🔥), Color and Duplicate. The gray EMPTY pattern is a ready-made silence — handy as a breakdown block in the chain.

10Pattern Chain

The chain turns patterns into an arrangement that follows your DAW's timeline. As soon as it holds one block, the chain drives playback: bar 1 of the song is bar 1 of the chain, and past its end TrapMan goes silent. Empty chain = the current pattern loops.

  • Press P to push the current pattern onto the chain, drag the pattern name from the top bar into it, or use the + button.
  • Click a block's title to swap its pattern; drag to reorder; -drag to copy; drag the right edge to resize ( for quarter-bar precision) — a block longer than its pattern loops it.
  • + right-click is the split tool; double-click names a section (Intro, Hook…).
  • Blocks cut sample tails cleanly at their boundaries, so an 808 never bleeds into the next section.
The Pattern Chain with two 4-bar blocks and the add button
Two blocks on the chain — the + button appends the current pattern.

11Slow, Slap & Master Tune

Slow is the chopped-&-screwed switch: tempo-synced half-speed playback, one octave down. It's per pattern — flip it on your drop pattern only. The rate menu (1/16 → 4 bars) sets the slice length: short = tight stutter, long = big slowed waves. The % knob blends dry/wet.

Slap glues the bus with one knob: a compressor tuned for drums (its detector ignores everything under 120 Hz, so 808 subs never pump it) into soft saturation and a clipper. Push the % until it knocks.

Master Tune (±12 st) retunes the entire kit at once. All three — plus each lane's volume, pan, mute and solo — are automatable from the DAW.

12Playback & DAW sync

  • TrapMan follows the host transport — tempo, position, loop. There is no internal play button.
  • Hit play on any bar and the pattern starts on its own beat 1; loops wrap sample-accurately, with no flam on the downbeat.
  • Return restarts the pattern from the top without touching the DAW transport — perfect for re-cueing while you jam.
  • On stop, ringing one-shots (808 tails, cymbals) decay naturally.

13MIDI in & import

Play the kit: incoming MIDI triggers lanes chromatically from C1 — lane 1 = C1, lane 2 = C♯1, and so on (change the octave in Preferences → MIDI). The incoming note picks the lane; each pad plays its sample as tuned in the editor.

Import: drop a .mid file onto a lane row to replace that lane's notes in the current pattern — pitches and velocities preserved, pattern length grows automatically. One ⌘Z undoes it.

14Export

Select lanes, then drag a badge from the top bar into your DAW:

  • MIDI OUT — one .mid per selected lane (current pattern, real pitches and velocities, tempo embedded), numbered to keep lane order.
  • AUDIO OUT — renders the current pattern with Slow, Slap and Master Tune baked in, as 24-bit WAV. Click the badge to pick Single File (everything summed) or Multiple Files (one stem per lane).

The audio render stops exactly at the pattern's end — bump LENGTH up one size if your 808 tail needs room. Muted lanes are skipped; use the lane selection (not solo) to choose what gets exported.

15Multi-out

TrapMan exposes 16 stereo outputs (Main + Out 1–15). Enable them in your DAW, then right-click a lane → Set Output — or flip Route All Lanes Incrementally to spread every lane onto its own output in one click. Lanes aimed at an output the DAW hasn't enabled fall back to Main, so nothing goes missing.

16Keyboard shortcuts

macOS shown; on Windows use Ctrl for and Alt for . The full list also lives in Preferences → Guide.

KeysAction
⌘Z / ⌘⇧ZUndo / redo — everywhere
⌘A · ⌘C · ⌘VSelect all · copy · paste
⌘RReplicate selection after itself
⌘U / ⌘⇧UCut notes / cut into a descending roll
SToggle slide on selected notes
PPush current pattern onto the chain
ReturnRestart the pattern
⌘DDuplicate the selected lane
Numpad 16Lane fills (steps, 2/4/8, backbeat, half-bar)
↑↓←→ (+)Nudge notes by semitone/step (octave/bar)
Number rowSet the piano-roll grid
+scroll / ⌥⌘+scrollZoom vertical / horizontal
DeleteDelete selected notes or steps

17Specs

SpecValue
Lanes16 (5 on a new instance)
Patterns24, each 1–16 bars
Chain blocks64, min ¼ bar each
Grid1/4 → 1/128, triplets included
Polyphony64 voices per output
Sample formatsWAV · AIF/AIFF · MP3 · FLAC
Pitch±24 st per lane · ±12 st master
Outputs16 stereo (Main + Out 1–15)
Audio export24-bit WAV, single file or stems
Project filesSamples embedded — sessions stay portable