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:** most commands only effect sampler instruments unless otherwise specified in the documentation for the specific command.

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

• speed of arpeggiator is constant and can not be changed

CSH aabb (CRSH in lgpt)

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 at speed 10

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 at speed 08

GOF

Close Gate OFF for Synth Instruments only

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 in the phrase.

• hop is instant: instrument triggers and commands on the same row will be run.
• no effect on instruments
• 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 --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 :)
• The retriggered instrument is NOT reset (as if you enter a note with no instrument number). The table (obviously) will continue to run and all running variable (filter,etc) won't be reset.
• 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 aabb (LEGA in lgpt)

performs an exponential pitch slide from previous note value to pitch bb at speed aa.

• 00 is the fastest speed for aa (instant, useless)
• bb values are relative: 00-7F are up, 80-FF are down, expressed in semi-tones
• if LEG is put on a row where a note is present and the pitch offset is 0 (e.g. C4 I3 LEG 1000) the slide will occur automatically from previous note to the current one at the given speed.
• If an instrument is not triggered on the same row as LEG, the command will re-trigger the previous instrument (unless the previous instrument is still playing).
• LEG does exponential pitch change (i;e. it goes at same speed through all octaves) while PITCH is linear

When used with MIDI instruments, the LEG command also acts as an exponential MIDI pitch bend controller:

• As with internal instruments, aa sets the speed (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 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

• PSL is also time for the first two byte nibble
• PITCH is linear pitch change

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

• As with internal instruments, aa sets the speed (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.

RTG aabb (RTRG in lgpt)

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

• For sampler 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

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 0190 (400bpm) 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

NOTE: For MIDI instruments the VOL command sends MIDI CC volume (controller 7). It does not set note velocity.