FX Commands Reference

There can be upto two commands on every row of the phrase screen and upto three on a row in a table. Commands which effect instruments can be run on any step of the instruments playback, including the step where the instrument is triggered.

Note: Note most commands only effect Sample or Original Sample instruments unless otherwise specified in the documentation for the specific command.

Commands speed

For SAMPLE, FM6, SID, STARLOOM, and PICOSWARM, every command with an aa speed field uses the same duration scale. Each speed unit represents one sequencer tick. A default step contains six tickss: 00 is instant, 01 takes 1 tick, 06 takes 1 default step, 18 takes 1 beat, 60 takes one 16-step phrase, and FF takes 42.5 default steps.

Combining pitch commands

ARP, LEG, PFT, and PSL each have one active pitch contribution per voice. Running a command again while that same command is already active updates its existing contribution; it does not add or stack another copy of the curve. ARP replaces and restarts its sequence, while PFT and PSL retarget their existing curves. LEG starts a new curve only for a tied note on the same row.

Different pitch command types remain independent and are combined. For example, an active PFT offset is applied together with an active PSL curve; issuing another PSL updates only the PSL curve.

ARP abcd (ARPG in lgpt)

cycle through relative pitches a, b, c, and d (starting with original pitch, then up a semitones, b semitones and so forth). The cycle loops if there's only zero's past a given post

Examples:

ARP 3000: loops between original pitch and +3 semitones ARP 4050: loops between original pitch, +4 semitones, +0 semitones, + 5 semitones

Note: speed of arpeggiator is constant and can not be changed

CHN aabb

Chance. The command targets the value immediately to its left. bb sets the chance amount.

• The aa byte is ignored.
• In phrase command column 1, CHN targets the phrase step note.
• In phrase command column 2, CHN targets command column 1.
• In table command column 1, CHN targets the currently playing note.
• In table command columns 2 and 3, CHN targets the command column immediately to the left.
• CHN can also be used to gate positional commands like HOP.
• bb is a raw chance value from 00 to FF
  • 00 = never
  • FF = always
  • 80 = about 50%
• CHN is a control command only. It does not get sent on to the instrument itself.

Examples:

• CHN 0080: in phrase command column 1, the note on this row plays roughly half the time
• VOL 0080 CHN 00C0: the VOL command runs most of the time, but not always
• HOP 0005 CHN 0080: the HOP command only executes roughly half the time
• In a table, VOL 0080 CHN 0080 --- ----: the VOL in column 1 runs roughly half the time

CSH aabb (CRSH in lgpt)

** Perform crush **

• aa = pre crush drive (from 1 to 0xFF, 00 is no change)
• bb = crush setting (from 0 to 0xF, 0x0 is 1 bit, 0xF is 16bit )

DLY --bb (DLAY in lgpt)

Delays the note by b + 1 ticks (only the low nibble is used).

FCT aabb (FCUT in lgpt)

adjust the filter cutoff to bb at speed aa

• FCT 0080 will instantly set the filter cutoff to 50%
• FCT 1000 will close the filter entirely over 16 ticks (about 2.67 default steps)

FLT aabb (FLTR in lgpt)

lowpass filter, set absolute frequency value for cutoff aa & resonance bb

• FLT 00FF is un-adultered sound

FRS aabb (FRES in lgpt)

adjust the filter resonance to bb at speed aa

• FRS 08FF will raise the resonance to screeching over 8 ticks (about 1.33 default steps)

REL --bb

Releases the current instrument after bb ticks.

• REL --00 releases immediately on that step
• REL --bb uses the low byte as the delay, similar to KIL --bb
• Unlike KIL, REL sends a release to the instrument instead of hard-stopping it

GRV aabb

set Groove to bb

• In Phrases, if aa > 0 then Groove will be set for all tracks
• In Tables, the Groove command has a maximum value of 1F (31)

HOP aabb

play position will jump to the next phrase in a chain, jumping directly at position bb (low nibble) in the phrase.

• hop is instant: instrument triggers and commands on the same row will be run.
• no effect on instruments
• HOP can be gated by CHN or randomized by RND commands placed to its right.
• in TABLES, cursor position will jump to row 0-F (low nibble of bb) aa times, then pass thru the hop command and continue thru the rest of the table

IRT --bb (IRTG in lgpt)

Instrument Retrigger, will retrigger the current instrument. It gives a table the ability to work as progammable phrases that then can be triggered simply by changing tables.

• IRT is a table-only command and is not available on the phrase screen.
• IRT --bb will retrigger the current instrument transposed by bb semi-tones. Note that each IRT transposition is cumulatively added. So a table with IRT 0001 will keep going a semitone up. Great for dubby echoes :)
• This system is also pretty useful to implement temporary non 4/4 signature without having to switch grooves, since you have the ability to re-trigger the instrument at tick resolution
• don't forget trying to combine it with complex hop structure !

KIL --bb (KILL in lgpt)

instrument will stop playing after bb ticks.

LEG aa-- (LEGA in lgpt)

Performs a logarithmic pitch slide from the previously sounding note to a new tied note. aa sets the duration.

• LEG is a phrase-only command
• Put LEG on the same row as the new note and leave that row's instrument column empty. The note supplies the destination; without a tied note on that row, LEG does nothing.
• aa represents the speed and is equivalent to sequencer ticks. 00 is instant and larger values take longer.
  • 01 takes 1 ticks, 06 takes 1 default step, and FF takes 42.5 default steps.
• LEG only modulates the pitch of the voice already playing on the channel; it does not trigger or re-trigger any instrument. Whether an instrument (re)triggers is governed by the presence of an instrument number on the row, not by LEG (see Tied Notes / Legato Slides).
• LEG uses a logarithmic pitch curve, moving evenly through musical intervals.

When used with MIDI instruments, the LEG command retains its exponential MIDI pitch bend behavior:

• aa uses the existing MIDI-specific bend rate, with 00 being instant.
• bb sets the target pitch bend position, scaled to the MIDI 14-bit pitch bend range (0–16383):
  • 7F is the center (no bend).
  • 00 is full downward bend.
  • FF is full upward bend.
• MIDI pitch bend is persistent across notes — if you want to return to normal pitch, you must manually reset the bend to center.
  • This can be done with LEG 007F on the next note or at any time.
• MIDI pitch bend can be sent without triggering a note, allowing for continuous pitch control.

LOF aaaa (LPOF in lgpt)

LooP OFset: Shift both the loop start & loop end values aaaa digits

• LOF 0001 adds one to both values, LOF FFFF removes one (so values > 0x800 moves the loop backward)
• reset everytime you start a new note (same as volume, pitch)
• LOF is absolute
• you can't trigger a note with the LOF, it has to be executed after a sample is playing
• every time you trigger a sample LOF is set back to the instrument parameters

MCC aabb (MDCC in lgpt)

Sends a MIDI “continuous control” message. aa is the control number and bb is the value. It will be sent on the MIDI channel of the currently running instrument.

MCH abcd

Sends a Chord via MIDI note on messages. The notes a,b,c,d relative semitone offsets from the current note as the root note of the chord.

• For example, if the current note is C3, MCH 0047 will send a E3 note on and a G3 note on to give a C major triad chord.
• Some more examples for a C root note:
  • 0027 Suspended 2nd (C D G)
  • 0036 Diminished triad (C D# F#)
  • 0037 Minor (C D# G)
  • 0047 Major (C E G)
  • 0048 Augmented (C E G#)
  • 0057 Diminished 7th (C F G)
  • 037A Minor 7th (C D# G A)
  • 047B Major 7th (C E G B)
• Note as the maximum of 4 notes can be sent at once, this limits the maximum chord size to a 5 note chord with the maximum distance of 15 semitones from the root note (the note on the current step).

MPC --bb (MDPG in lgpt)

sends a program change command on the current channel. 0000 is program 0.

PAN aabb

PAN aabb: where bb is the pan destination and aa is the speed to get there

PFT aabb (PFIN in lgpt)

PitchFineTune: aa is the speed, and bb is a fine tune target (about +/-1 semitone).

• bb sets a fractional pitch offset in roughly the range -1 .. +1 semitone
• 00 in bb returns the note to the root center
• 00 is the fastest speed for aa

POF aabb (PLOF in lgpt)

PlayOFfset virtually cuts a sample into 256 chunks. It can jump absolutely to chunk aa and then also apply a relative signed bb chunk offset.

PSL aabb (PTCH in lgpt)

PitchSLide performs a linear pitch slide from previous note value to pitch bb at speed aa

• aa sets the slide duration in sequencer-ticks units. 00 is instant and larger values take longer.
• bb values are relative: 00-7F are up, 80-FF are down, expressed in semi-tones
• PSL performs a linear pitch change

The PSL command also acts as a linear MIDI pitch bend controller for MIDI instruments.

• aa uses the existing MIDI-specific bend rate, with 00 being instant.
• bb sets the target pitch bend position, scaled to the MIDI 14-bit pitch bend range (0–16383):
  • 7F is the center (no bend).
  • 00 is full downward bend.
  • FF is full upward bend.
• MIDI pitch bend is persistent across notes — if you want to return to normal pitch, you must manually reset the bend to center.
  • This can be done by sending the aabb value PSL 007F on the next note or at any time.
• MIDI pitch bend can be sent without triggering a note, allowing for continuous pitch control.

RND aabb

RaNDom. The command targets the value immediately to its left. aabb sets the randomization amount.

• For note targets, bb sets the randomization amount and aa is ignored.
• In phrase command column 1, RND randomizes the phrase step note.
• In phrase command column 2, RND randomizes command column 1's parameter.
• In table command column 1, RND randomizes the currently playing note and retriggers the instrument.
• In table command columns 2 and 3, RND randomizes the parameter of the command column immediately to the left.
• For command targets, each RND field controls the matching target field. For example, VOL 4080 RND 0010 varies only the 80 volume target, while VOL 4080 RND 1000 varies only the 40 speed.
• Each field's value is the randomization depth:
  • 00 = no change
  • FF = maximum randomization
• Randomization is applied to the target command's meaningful value fields and then clamped back into the valid range for that command.
• Nibble-based commands like ARP and MCH randomize each interval nibble independently.
• Split commands like VOL, FCT, FLT, FRS, PAN, PSL, LEG, PFT, POF, and RTG randomize their two bytes independently.
• CSH randomizes the drive byte and the crush nibble independently.
• MCC keeps the controller number and randomizes only the value.
• GRV, DLY, IRT, KIL, REL, TLN, and VEL randomize only their active low-byte or low-nibble value.
• HOP randomizes both its repeat count (high byte) and destination step (low nibble) independently.
• LOF and TPO randomize as whole values.
• Control or identity commands such as CHN, RND, STP, TBL, and MPC are not randomized when targeted.
• Randomized note values are clamped to the valid phrase note range.

Examples:

• RND 0080: in phrase command column 1, randomizes the note on this row by a moderate amount
• VOL 4080 RND 0080: randomizes the VOL parameter by a moderate amount
• HOP 0804 RND 10FF: randomizes the HOP repeat count around 08 and the destination to any row from 0 to F
• In a table, FCT 2080 RND 0080 --- ----: randomizes the FCT parameter in column 1

RTG aabb (RTRG in lgpt)

Retrigger the sound by looping from the current play position over a number of ticks.

• For Sample and Original Sample instruments: aa moves the loop forward by aa ticks each retrigger (loop offset per retrigger)
• bb is the loop length in ticks
• For MIDI instruments, only bb is used (aa is ignored)

RTG 0001: loop one tick from current play position RTG 0102: loop of two ticks but move the loop one tick every loop RTG 0101: does not do anything because after looping one tick, you move forward one tick and therefore go back to the current position

TBL --bb (TABL in lgpt)

triggers table bb

• TBL is a phrase-only command and is not available inside a table.

TLN --bb

Sets the trigger length (gate length) of the current note to bb ticks.

• For MIDI instruments, this overrides the default note length for the current step.
• For Sample and Original Sample instruments, this sets the number of ticks before the instrument is released.
• TLN --06 results in a gate length of exactly 6 ticks (one default 16th note phrase step).
• TLN --00 releases/stops the note immediately (gate length 0).
• Similar to REL or KIL, only the low byte bb is used.

TPO aabb (TMPO in lgpt)

sets the tempo to hex value aabb.

• TPO 0000 is clamped to the minimum tempo (003C, 60 BPM).
• TPO 003C (60bpm) is the lowest acceptable value and TPO 012C (300bpm) is the highest acceptable value. Values outside the allowable range will be clamped to the nearest value within the range.

STP (STOP in lgpt)

Stops the table from processing any further rows.

• This command is only valid in tables, not in phrases
• When the table processor encounters STP, it immediately stops executing the current table
• Useful for creating one-shot effects that should run once and then stop

VEL --bb

Sets the MIDI note velocity value (bb) for MIDI instruments. This is valid for MIDI instruments only and can also be used in tables.

VOL aabb (VOLM in lgpt)

starting from the instrument's volume setting, approach volume bb at speed aa. 00 is the lowest volume and 00 is the fastest speed (instant).

• to achieve sounds that grow in volume, make an instrument with volume 0 and then apply the VOL command

For MIDI instruments, VOL controls MIDI channel volume (controller 7). The bb target is converted from the tracker's 00-FF range to MIDI's 0-127 range. The aa duration uses the same tick scale described above: 00 is instant, 01 takes 1 tick, and 06 takes one default step. It does not set note velocity; use VEL for that.