TOMGRAFT is a dedicated tom drum instrument. It shapes LOW / MID / HIGH simultaneously from a single shared sound engine plus 4 per-tom controls (TUNE / DECAY / LEVEL / PAN), so the toms always stay tonally cohesive. It is available in two editions: the free TOMGRAFT and the upgraded TOMGRAFT Pro, which adds a fourth tom (FLOOR), per-tom samples, fill WAV export, FLUX fine-tuning and full use of the EDIT screen. They install as separate plugins, so you can keep both side by side. This manual covers both editions. Features exclusive to the Pro edition are described in “4. Pro Features”.

No samples are bundled. It produces sound out of the box using only 3 synthesized layers (BODY / SKIN / STICK). You can also layer your own audio files on top.

Free vs Pro

Feature	Free Edition	Pro
Toms	LOW / MID / HIGH	+ FLOOR (4th tom)
Samples	1 slot shared across all toms	+ 1 slot per tom
Fill Export	Drag MIDI	+ Drag WAV (full mix)
FLUX	Fixed at 25 (variation display animates)	Adjust FLUX + STRENGTH / POSITION / DRIFT
EDIT Screen	Visible but read-only (preset/session values sound as saved)	Fully editable
User Presets	Load / Load from file	+ Save / Delete / Export to file
Factory Presets	100	110
Multi-Out	3 toms	4 toms

1. Quick Start

1. Insert TOMGRAFT Pro on an instrument track in your DAW.
2. Play C1 / D1 / E1 on your keyboard. In the free edition they trigger one hit each for LOW / MID / HIGH. In Pro, C1 / D1 / E1 / F1 trigger FLOOR / LOW / MID / HIGH. You can also click the on-screen keyboard to trigger them.
3. Switch through the factory presets (100 in 10 categories in the free edition, 110 in 11 categories in Pro) using the top preset bar to find a sound close to what you envision.
4. Adjust TUNE / DECAY / LEVEL / PAN for the 4 toms in the TOMS panel on the MAIN screen. If you want to layer your own sample, drop an audio file (such as WAV) into the SAMPLE slot in each tom’s row (or the ALL slot in the header) of the TOMS panel.
5. Press C3–B3 (default) on your keyboard to play the tom fill assigned to that key in sync with the tempo.
6. To re-roll the fills, press RANDOM. You can lock in fills you like with LOCK.

2. Panel Overview

The screen features a hardware-style brushed metal design with MAIN and EDIT tabs at the top (switching tabs does not change the window size). Choose the window size with 75 % / 90 % / 100 % at the top right; on a small screen such as a laptop, pick 75 % or 90 %. The size you choose is kept on that computer for the next time. Hovering the mouse over controls displays descriptions in the InfoBar at the top (switching between Japanese and English based on the OS display language). The version number is displayed to the right of the brand line.

Preset Bar (Top)

• Choose presets using the left/right arrows, or by clicking the preset name to open the list. 110 factory presets (across 11 categories) are included.
• The Pro edition supports saving new user presets, deleting them, exporting to files, and loading from files.
• The selected preset name persists in your session. Tweaking a knob after loading a preset adds an asterisk (*) to the right of the name.
• Replacing a sample does not add an asterisk (*) (because presets do not alter sample settings).

MAIN Screen

• TOMS: A panel displaying the 4 toms: LOW / MID / HIGH / FLOOR. Adjust TUNE / DECAY / LEVEL / PAN / SOLO for each tom. Dropping an audio file (such as WAV) into the slot in the SAMPLE column on the right loads the sample and displays its waveform in place. In the Pro edition, you can drop individual samples into each tom’s row, or drop onto the header’s ALL slot to set a shared sample.
• FLUX and WEAR: Combined into a single panel.
  • FLUX: Per-hit variation. Simulating how strike velocity, strike position, and slight timing rushes fluctuate, it introduces subtle variations to pitch, decay, brightness, volume, attack, skin sound, and timing. In addition to adjusting the overall variation amount with the FLUX knob, you can fine-tune the character of variation using the 3 knobs: STRENGTH / POSITION / DRIFT. The 7 bars display what varied and by how much for each hit in sync with your playing.
  • WEAR: Adds gradual changes as the drumheads settle in over continuous playing. SPAN specifies the cycle of change (in bars).
• PHRASE: Manages tom fills assigned to 12 keys. Press RANDOM to re-roll all 12 fills, and LOCK to keep keys you like. Enabling LOOP repeats the fill while the key is held. ZONE allows changing the keyboard octave of the fills (C0 / C2 / C3 / C4 / C5). Drag a fill key onto a track in your DAW to export that fill in the format chosen with MIDI / WAV.
• OUTPUT: Four primary knobs (DRIVE / EQ TILT / ROOM / OUT) are located on the MAIN screen. The remaining parameters are on the EDIT screen.
• Keyboard (Bottom):
  • C1 / D1 / E1 / F1: Triggers one hit each for FLOOR / LOW / MID / HIGH. With WAV chosen in the PHRASE panel, these on-screen keys show a “WAV” tag; drag one onto a track in your DAW to export that hit as a WAV (at the velocity of the height you pressed). When transitioning from the free edition (C1 LOW / D1 MID / E1 HIGH), the toms triggered by the same MIDI clip will shift by one key (C1 becomes FLOOR instead of LOW).
  • 12 PHRASE Keys: Triggers fills across 12 keys in the octave selected by ZONE (default C3–B3).
  • No actions are assigned to any other keys (pressing them produces no sound).

EDIT Screen

Clicking the EDIT tab displays the detailed sound-shaping screen. In the Pro edition, all parameters on the EDIT screen can be freely adjusted.

• COMMON: Synthesis parameters for the 3 layers: BODY (body and head resonance), SKIN (stick rubbing against the drumhead), and STICK (short attack sound of the stick itself).
• SAMPLE: Detailed settings including playback start position (START), pitch, tone, attack, decay, reverse playback, AUTO-TUNE, FOLLOW TUNE, and embedding (EMBED).
• SYMPATHY: Adjusts sympathetic resonance from unplayed toms (AMOUNT / THRESH / TONE / DECAY).
• FLUX SETUP: Repeat mode (REPEAT: LOCKED / EVOLVE / FREE), timing processing (TIMING: STUDIO / LIVE), random seed (SEED).
• OUTPUT Details: Master instrument transpose, transients (TR-ATK / TR-SUS), EQ presence (PRES Hz / PRES dB), reverb settings (SIZE / PRE-DLY), velocity curves (VEL CRV / VEL>TONE / VEL>SKIN), and more.

Notes on the Free and Pro Editions

• Key Mapping in Pro Edition: The key mapping in the Pro edition differs from the free edition (C1 is FLOOR, D1 is LOW, E1 is MID, and F1 is HIGH). When transitioning from the free edition to the Pro edition, the toms triggered by the same MIDI clip will shift by one key (C1 notes will trigger FLOOR instead of LOW).

3. Parameter Details

TUNE (Per Tom)

The base pitch of each tom. The intervals between the 4 toms define the character of the drum kit.

DECAY (Per Tom)

Determines how long each hit sustains. Generally, setting longer decay times for larger toms yields a more natural kit feel.

LEVEL / PAN (Per Tom)

Controls the volume balance and stereo panning among the 4 toms. Turning LEVEL all the way down mutes the tom. PAN centers at the 12 o’clock position.

SAMPLE

Drop an audio file (wav / aiff / flac / mp3) into the SAMPLE slot in the TOMS panel on the MAIN screen to load it. In the Pro edition, in addition to loading individual samples for each tom, you can set a shared sample in the ALL slot in the header. In the detailed settings (EDIT screen), you can freely configure playback start position, pitch, tone, attack, decay, reverse playback, AUTO-TUNE, FOLLOW TUNE, embedding (EMBED), and more.

FLUX

Per-hit variation. Just like a human drummer, strike velocity, strike position, and slight timing rushes fluctuate naturally, introducing subtle changes to pitch, decay, brightness, volume, attack, skin sound, and timing. In the Pro edition, in addition to adjusting the overall variation amount with the FLUX knob, you can fine-tune the texture of variation with STRENGTH / POSITION / DRIFT. Playing back the same position in a song reproduces the exact same sound every time. The 7 bars display the actual deviations applied on the most recent hit.

WEAR / SPAN

Simulates the gradual settling in of drumheads as they are struck repeatedly. SPAN specifies the number of bars for one complete cycle of change. Because it is determined by bar position rather than elapsed time, it provides stable and reliable reproducibility even when jumping playback positions.

PHRASE

Tom fills assigned across 12 keys. Press RANDOM to re-roll all 12 fills, and LOCK to keep keys you like. LOOP repeats playback while the key is held. ZONE allows changing the keyboard octave (C0 / C2 / C3 / C4 / C5). Choose the export format with MIDI / WAV in the PHRASE panel, then drag a fill key onto a track in your DAW to export that key’s fill as a MIDI file or a WAV file. Dragging the fill name box exports the last fill played.

OUTPUT Knobs (MAIN Screen)

• DRIVE … Adds density and thickness through saturation.
• EQ TILT … Tilts the tonal balance between high and low frequencies like a seesaw.
• ROOM … Adjusts the mix amount of the room reverb.
• OUT … Adjusts the final master output level.

EDIT Screen Parameters

In the Pro edition, all knobs and settings on the EDIT screen can be freely operated to dial in your sound.

• BODY … Sets the pitch difference between batter and resonant heads (DETUNE), tonal hardness (SHAPE), pitch drop on initial strike (PITCH ENV / PITCH TIME), attack, and level.
• SKIN … Sets the brightness, attack, duration, and level of the stick rubbing sound on the head.
• STICK … Sets the brightness, duration, and level of the stick’s impact attack sound.
• SYMPATHY … Sets the sympathetic resonance of unplayed toms: amount (AMOUNT), response threshold (THRESH), tone, and decay time.
• FLUX SETUP … Sets repeat mode (REPEAT: LOCKED / EVOLVE / FREE), timing processing (TIMING: STUDIO / LIVE), and random seed (SEED).
• OUTPUT Details … Sets master instrument transpose, transients (attack / sustain), EQ presence band, reverb size and pre-delay, velocity curves, and more.

Individual Tom Outputs (Multi-Out)

• The main output carries the overall mix of all 4 toms combined. In addition, 4 stereo individual outputs for LOW / MID / HIGH / FLOOR are available, allowing you to route each tom to a separate track in your DAW. Sympathetic resonance from an unplayed tom is sent to the individual output of that resonating tom.
• Individual outputs do not pass through OUTPUT panel effects (such as DRIVE / EQ / ROOM). They are output raw/dry, allowing you to freely apply plugin processing in your DAW. If you need sound processed with the plugin’s master effects, use the main output.

4. Pro Features

FLOOR (4th Tom)

The 4th tom covering the lowest frequency range. Triggered by C1 on the keyboard. TUNE / DECAY / LEVEL / PAN / SOLO can be adjusted independently just like the other 3 toms. The panel accent color is purple. It is also integrated into PHRASE fill generation, concluding fills with the FLOOR tom. In addition, individual outputs (multi-out) expand to 4 channels including FLOOR.

Per-Tom Samples

You can drag and drop separate audio files into each row of LOW / MID / HIGH / FLOOR in the TOMS panel. Empty rows without a sample will automatically play the sample loaded into the header’s ALL (shared) slot. Sample-shaping parameters (such as START / PITCH / TONE / ATTACK / DECAY / LEVEL / REVERSE) are controlled with a single shared set across all toms, while pitch is matched via FOLLOW TUNE and volume is balanced using each tom’s LEVEL control. Samples loaded from files have leading silence automatically trimmed and volume normalized before playback, minimizing inconsistencies between audio files (AUTO-TUNE applies only to the shared sample in ALL).

Fill WAV Export

With WAV chosen in the PHRASE panel, dragging a fill key onto a track in your DAW exports one full cycle of that fill as a single WAV file (the full mix). Files are rendered as 32-bit float stereo audio, captured until the reverb tail completely fades out. The rendered sound is identical to playing that fill from the start of a bar in your DAW, and exporting multiple times under the same key and RANDOM state yields identical files every time. Audio playback is not interrupted during export.

FLUX Fine-Tuning

In addition to the FLUX knob that sets the overall variation amount, 3 knobs are provided to fine-tune the texture of variation:

• STRENGTH: Variation in strike velocity. Harder strikes are louder, brighter, and have a sharper attack.
• POSITION: Variation in strike position. Striking closer to the rim shortens decay and brightens tone.
• DRIFT: Timing rush and drag. Shifts timing smoothly across beats.

The 7 bars inside the panel display what varied and by how much on each hit in real time with playback.

EDIT Screen Operation & User Preset Management

All parameters on the EDIT screen can be freely adjusted to pursue your ideal sound. You can fine-tune COMMON (synthesis parameters for BODY / SKIN / STICK), detailed SAMPLE settings, SYMPATHY (resonance), FLUX SETUP (repeat mode, timing, seed), and detailed OUTPUT settings (transients, presence EQ, reverb details, etc.). Furthermore, crafted sounds can be saved as new user presets, deleted, exported to files (.tomgraft), or loaded from external files via the preset bar.

110 Factory Presets

Includes 110 factory presets across 11 categories. Ten new presets in the “FLOOR” category have been added, specifically highlighting the 4th FLOOR tom. The 100 presets shared with the free edition have also been pre-tuned in the Pro edition so that the FLOOR tom pitch is harmoniously balanced.

5. Recommended Settings

When in doubt, choose from the factory preset categories. A total of 110 presets are included across 11 groups × 10 presets.

• FLOOR … Kits featuring deep sub-bass and powerful impact highlighting the 4th FLOOR tom.
• ROCK / METAL … Tight kits with prominent body resonance and short decay.
• FUNK / POP … Bright tuning and nimble decay. Well suited for busy, intricate fills.
• JAZZ … Soft attack and rich resonance. Configured with a natural swing feel.
• LOFI … Mellow tuning and warm tone. WEAR is dialed in deeper.
• TECHNO / TRAP … Rich low end with tight transient definition. TRAP features longer sustain.
• CINEMATIC … Vast spatial ambience and strong resonance. Ideal for impactful, heavy single hits.
• INDUSTRIAL … Crafted with metallic resonance and heavy saturation distortion.

6. Requirements

Item	Details
Supported OS	Windows 10 / 11 x64, macOS 11 or later (Apple Silicon / Intel)
Plugin format	Windows: VST3 / Mac: VST3, AU (Instrument)
Host	DAW compatible with VST3 or AU
Latency	Zero when TIMING is set to LIVE. When set to STUDIO, latency is reported to the host for automatic compensation
Bundled samples	None (sounds with synthesis alone)
Outputs	1 stereo main output + 4 stereo individual outputs for LOW / MID / HIGH / FLOOR

7. Installation and Uninstallation

* This product is recognized as a separate plugin from the free TOMGRAFT, so both can be installed and used side by side without uninstalling the free version.

Installation (Windows)

1. Extract the downloaded ZIP file.
2. Copy the TOMGRAFT Pro.vst3 folder to the following location:
   C:\Program Files\Common Files\VST3\
3. Launch your DAW and run a plugin rescan.

Installation (Mac)

1. Extract the downloaded ZIP file.
2. Copy TOMGRAFT Pro.vst3 to ~/Library/Audio/Plug-Ins/VST3/ and TOMGRAFT Pro.component to ~/Library/Audio/Plug-Ins/Components/ (~ is your home folder. In Finder, choose Go → Go to Folder and paste the path to open it. Create the folder if it does not exist).
3. Open Terminal (Applications → Utilities → Terminal), paste the following three lines one at a time, and press Return after each:

   cd ~/Library/Audio/Plug-Ins
   xattr -dr com.apple.quarantine "VST3/TOMGRAFT Pro.vst3"
   xattr -dr com.apple.quarantine "Components/TOMGRAFT Pro.component"

4. Launch your DAW and run a plugin rescan (if you copy the files while your DAW is running, the change may not take effect).

Uninstallation (Windows)

Delete C:\Program Files\Common Files\VST3\TOMGRAFT Pro.vst3. If you also want to remove saved user presets, delete %APPDATA%\Tomgraft\Presets as well.

Uninstallation (Mac)

Delete TOMGRAFT Pro.vst3 and TOMGRAFT Pro.component. If you also want to remove saved user presets, delete ~/Library/Tomgraft/Presets as well.

8. Troubleshooting

• Plugin does not appear in DAW
  • [Windows] Verify that it was copied to Common Files\VST3 and that the folder is included in your DAW’s plugin scan paths.
  • [Mac] Verify that files were copied to the correct paths (VST3: ~/Library/Audio/Plug-Ins/VST3/, AU: ~/Library/Audio/Plug-Ins/Components/), run the Terminal commands, and perform a plugin rescan in your DAW. If the AU does not appear in Logic Pro or another DAW, restart your Mac.
• SmartScreen warning appears on first run (Windows)
  • This appears because the binary is not code-signed. Click “More info” → “Run anyway” to continue.
• macOS displays “is damaged and can’t be opened” or “cannot be verified”
  • Run the Terminal commands described in the Mac section of “7. Installation and Uninstallation”.
• No sound when playing keys other than designated ones
  • This is by design. In the Pro edition, single hits are assigned to C1 (FLOOR) / D1 (LOW) / E1 (MID) / F1 (HIGH), and tom fills are assigned to the 12 keys in the octave chosen by ZONE (default C3–B3). Other keys produce no sound.
• Fills do not sound
  • Check that PHRASE is not turned off. Also check that incoming MIDI notes match the octave set in ZONE (default C3–B3).
• Rendered audio sounds different from playback
  • Check that REPEAT is not set to FREE. LOCKED and EVOLVE are determined by playback position, so identical positions always produce identical sound.
• Noticeable latency when playing in real time
  • Check whether TIMING in FLUX SETUP on the EDIT screen is set to LIVE (in STUDIO mode, latency is reported to the host).
• Dropped sample does not sound
  • Check whether SAMPLE LEVEL is turned down, or whether another layer is set to SOLO.
• Nothing happens when dragging a fill
  • Drag a fill key (or the fill name box) onto your DAW track. MIDI / WAV in the PHRASE panel only choose the export format; dragging them does nothing. The fill name box exports the last fill played, so it gives nothing until a fill has played once.

9. Notes

TOMGRAFT (free edition)

• Distributed free of charge (freeware) “AS IS”, without individual support.
• The source code is proprietary and not public.
• All copyrights to this product belong to Tonecraft Tokyo.
• Modification, reverse engineering, redistribution, and resale of this product are prohibited. Please download it only from the official Tonecraft Tokyo website or the store pages it links to.
• Free for both commercial and non-commercial use.
• This product uses JUCE.
• This product uses JetBrains Mono and Noto Sans JP (SIL Open Font License 1.1).

TOMGRAFT Pro

• This product comes with no support and is provided as is.
• No refunds are provided.
• The source code is proprietary and not public.
• Copyright for this product belongs to Tonecraft Tokyo.
• Redistribution, resale, modification, and reverse engineering of this product are prohibited.
• Only the purchaser may use this product. Transferring or sharing it with third parties is prohibited.
• This product uses JUCE.
• This product uses JetBrains Mono and Noto Sans JP (SIL Open Font License 1.1).

10. Disclaimer

• This product is provided “AS IS”, without warranty of any kind, express or implied, including but not limited to merchantability, fitness for a particular purpose, and non-infringement of third-party rights.
• Tonecraft Tokyo is not liable for any damages arising from the use of, or inability to use, this product, including but not limited to loss or corruption of project files or audio data, equipment malfunction, lost working time, or lost profits.
• Operation is not guaranteed for every combination of DAW, operating system, and hardware.
• Specifications may change, and the product may be discontinued, without notice.
• Use this product at your own risk. Back up your projects before important work.