Note

Set a slot’s MIDI value. Accepts YGG notation.

Velocity

Set a slot’s velocity value. Unlike most other systems, velocity is mixed with track level to produce a final result. For example, a slot with a velocity of 70 on a track with a level of 50% would produce a final velocity of 35. The exception to this rule is the crow clade, which can use neither velocity nor track level information.

Chord

Paint a chord horizontally starting from X Y. Automatically append tracks and rows if needed. Any size chord can be built. An extensive chord library available or precision chords can be entered with MIDI values. Chords default to octave 4. Append a semicolon followed by an integer to set an octave: 1 1 c;cmin;6

Shift

Shift down (or up; value can be negative) a track’s slots by a value. Slots wrap.

Arpeggio

Arpeggiate the entire track X starting at Y with evenly-spaced notes. If Y is absent, start at 1. Default VALUE of spacing is 0. If multiple MIDI_NOTES are used, loop through the notes indefinitely. Arpeggiate indefinitely through any of the chords.

Transpose Slot

Transpose a slot up or down by semitones. Value can be negative.

Clock

Set the “clock” value for a track. Default is 1. Max is 2. Tracks have independent clock sync rates.

Yggdrasil uses 96 PPQN, so any value entered will be snapped to the nearest pulse.

Sync

Synchornize Y playback positions across all tracks.

Lacuna  PHENOMENON

Slot a “lacuna” phenomenon. Lacuna first disables the current track, then enables and queues any other track. The net effect is a clean handoff of one track to another.

Lacunae honor ascending and descending tracks (it is smart enough to start at the top or bottom of a track) but lacunae do not effect solo and mute attributes. Thus, it is possible to queue and and play muted track. This is a feature, not a bug.

End  PHENOMENON

Slot an “end” phenomenon. This causes playback to wrap back to the top of the track.

Off  PHENOMENON

Slot an “off” phenomenon. This causes MIDI note off signals to be sent to all notes that are currently on. (It does not send note off signals to notes that are not on.)

Random  PHENOMENON

Slot a “random” phenomenon. This causes playback to jump to a random slot in the track.

Lucky  PHENOMENON

Slot a “lucky” phenomenon. This causes playback to jump to a random, not-empty slot in the track.

Reverse  PHENOMENON

Slot a “reverse” phenomenon. This causes track playback to reverse direction.

Anchor  PHENOMENON

Slot an “anchor” phenomenon. This causes playback to jump to a specific slot in the track. If the slot is invalid then advance as if the slot was empty. History.

Shift  PHENOMENON

Slot a “shift” phenomenon. This causes the entire track to shift up or down.

Ruin  PHENOMENON

Slot a “ruin” phenomenon. This randomly removes a slot from the track.

Select

Select a slot, track, or range of tracks.

Play / Stop

Start and stop playback on individual or all tracks. Playback on all can also be toggled with spacebar (when the buffer is empty) and norns button 2.

Ascend / Descend

Set the direction of one or all tracks.

BPM

Set the BPM to a value.

Track Depth

Set the depth of a track.

Append

Insert a number of tracks after track X. Optionally, have each shadow track X.

Remove

Remove a track or slot. Tracks slide left. Slots slide up.

K3

norns key 3 is assignable to any command. Invoke with k3 = followed by any command string. K3 is now assigned to this command.

Clear

Clear all slots and tracks. Turn off track mutes and solos. Reset track levels. Preserve track count, depths, clades, and shadows. Preserve command history.

New

Like clear but also resets track count, depth, clades, and shadows to defaults.

Save / Load

Save or load ygg data from a file in /dust/data/yggdrasil/tracks. Only note information is saved (YPC, phenomenon, velocity, etc. is omitted.)

Routine

Run arbitrary routines in /dust/data/yggdrasil/routines/.

Routines are composed of any number of valid commands.

Each command goes on a new line.

Level

Set the level of a track. Valid levels are 0% to 100%. Levels are linear.

Unlike most other systems, velocity is mixed with track level to produce a final result. For example, a slot with a velocity of 70 on a track with a level of 50% would produce a final velocity of 35. The exception to this rule is the crow clade, which can use neither velocity nor track level information. See Y Mode interactions, too.

Mute / Unmute

Mute or unmute a track. Invoking without X will operate on all tracks.

Solo / Unsolo

Solo or unsolo a track. Invoking without X will operate on all tracks.

Enable / Disable

Enable or disable a track. Disabled tracks stop playing. Invoking without X will operate on all tracks.

Clade

Set the “clade” of a track. Clades are synth, midi, ypc (sampler/softcut), and crow.

Synth

Set the track’s synth voice with synth;voice;.... Use either name (rikki) or their number (2). The Yggdrasil synth has three different polyphonic voices. You can use all three at once, across any number of tracks.

Set the macro control levels with synth;m1;... and synth;m2;.... You can use this command with X to set entire tracks or X Y to set individualslots.

Use synth;enc to toggle takeover mode for macro controls with norns encoders 2 and 3.

MIDI

Set the MIDI device and channel of a track.

YPC

Set a global sample bank and load samples into tracks and slots. Yggdrasil can access one bank at a time, but a bank can contain any number of samples. Slots contain can contain up to one sample, but tracks can contain any number of slots (each with unique samples.) “Banks” located at /dust/audio/yggdrasil/banks/.

Yggdrasil ships with a default factory bank.

If a filename has frequency information at the end, like your_sample_name_440hz.wav, Yggdrasil will repitch intelligently. If the filename does not have frequency information at the end, a default of 440hz will be used. Once a sample is loaded into a slot, a note value also needs to be set. A common technique is to use x ypc;l;your_sample_name_440hz.wav and then use x arp.

Crow

Set the crows output pair. A value of 1 maps to output pair 1/2. A value of 2 maps to output pair 3/4.

Turn on and off Just Friends mode with X crow;jf;on.

Shadow / Unshadow

Set a track to “shadow” another’s clade and clade attributes. For example, let Track 1 be a MIDI clade set to channel 16 and device 4. By invoking 2 shadow;1, Track 2 would shadow Track 1. Its clade would be set to MIDI, its channel to 16, and device to 4. Should any of these attributes on Track 1 change, they would also change on Track 2.

Shadowed attributes are: clade, synth voice, MIDI channel, MIDI device, crow pair, Just Friends mode. Tracks can shadow other shadowed tracks.

View

Possible values for slot views are midi, ygg, freq, and ipn. Toggle velocity with velocity/vel/v. Reveal the heads up display with column and row numbers with hud/h.

Similarly, reveal or hide phenomenon with phenomenon/p. Reveal or hide macros with m1 and m2. index is also available to reveal the slot’s logical position. Change pages with tracker/t, mixer/m, and clades/c (this can also be accomplished with tab).

View current sample bank with bank/b. Toggle sample names with ypc/y.

Jump

Jump to row Y.

Follow

Toggle following the tracker on or off. Follows the lowest and right-most slot.

Panic

Turn off all MIDI notes on all channels on all devices. Send kill signals to the SuperCollider synth.

Y Mode

Toggle Y Mode on. (This is to support keyboards that do not have caps lock.)

Oblique

Draw an oblique strategy.

Screenshot

Take a screenshot and drop it in /dust. See this for more info.

Rerun

Calls norns.script.load(norns.state.script), reruning the script.

Info

View Yggdrasil version information.

Exit

Exit Yggdrasil without saving and return to norns system menu.