seq~
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seq~

Signal-driven event sequencer

Description

The seq~ object is an event sequencer that is driven by a signal input. seq~ can be used to create looping sequences of control data that are synchronized to a phasor~.

Examples

Discussion

It is optimized for continuous ramp input, but any signal passing through any range of values will work. Sequence events can be recorded in real-time or inserted with the add message. seq~ can contain any number of sequences, but only one at a time is active for playback and recording.

Arguments

None.

Attributes

Common Box Attributes

annotation [symbol]

Sets the text that will be displayed in the Clue window when the user moves the mouse over the object.

background [int] (default: 0)

Adds or removes the object from the patcher's background layer. background 1 adds the object to the background layer, background 0 removes it. Objects in the background layer are shown behind all objects in the default foreground layer.

color [4 floats]

Sets the color for the object box outline.

fontface [int]

Sets the type style used by the object. The options are:

plain
bold
italic
bold italic

Possible values:

0 = 'regular'
1 = 'bold'
2 = 'italic'
3 = 'bold italic'

fontname [symbol]

Sets the object's font.

fontsize [float]

Sets the object's font size (in points).

Possible values:

'8'
'9'
'10'
'11'
'12'
'13'
'14'
'16'
'18'
'20'
'24'
'30'
'36'
'48'
'64'
'72'

hidden [int] (default: 0)

Toggles whether an object is hidden when the patcher is locked.

hint [symbol]

Sets the text that will be displayed in as a pop-up hint when the user moves the mouse over the object in a locked patcher.

ignoreclick [int] (default: 0)

Toggles whether an object ignores mouse clicks in a locked patcher.

patching_rect [4 floats] (default: 0. 0. 100. 0.)

Sets the position and size of the object in the patcher window.

position [2 floats]

g/s(set)

Sets the object's x and y position in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its size unchanged.

presentation [int] (default: 0)

Sets whether an object belongs to the patcher's presentation.

presentation_rect [4 floats] (default: 0. 0. 0. 0.)

Sets the x and y position and width and height of the object in the patcher's presentation, leaving its patching position unchanged.

rect [4 floats]

g/s(set)

Sets the x and y position and width and height of the object in both patching and presentation modes (if the object belongs to its patcher's presentation).

size [2 floats]

g/s(set)

Sets the object's width and height in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its position unchanged.

textcolor [float]

Sets the color for the object's text in RGBA format.

textjustification [int]

Text Justification

Possible values:

0 = 'left'
1 = 'center'
2 = 'right'

varname [symbol]

Sets the patcher's scripting name, which can be used to address the object by name in pattr, scripting messages to thispatcher, and the js object.

Messages

bang

Causes information about the seq~ object's current sequence number, mode of operation (record, overdub, play) and total number of current events to be printed in the Max window.

int

Arguments

input [int]
Same as anything .

float

Arguments

input [float]
Same as anything .

list

Arguments

input [list]
Same as anything .

anything

Arguments

input [list]
The seq~ object is used to record and play back messages. All events received in the inlet are stored according to the current value of the input signal. Any message can be sequenced except for commands to the seq~ object itself. The example shows a simple way to work around this limitation.
Note: seq~ can be used to sequence MIDI data if the MIDI input stream is converted into lists of MIDI events. This conversion is necessary to avoid outputting a corrupted MIDI stream which would occur if only the raw int messages of a MIDI stream were sequenced individually and the seq~ object were not doing a simple forward linear playback.

add

Arguments

sequence-name (symbol), start time (float), optional end time (float) and Max-Event (message) [list]
The word add , followed by an int, a float and a message, inserts a Max event specified by the message at the time specified by the float for the sequence number specified by the int. (e.g., add 2 0.5 honk will insert the message honk to be played at the halfway point of sequence 2.)

clear

The word clear , followed by the name of a sequence, erases the sequence. The message clear all erases all current sequences.

erase

Synonym for clear .

delete

Arguments

sequence-number (int), time (float), and Max-Event (message) [list]
The word delete , followed by an symbol that specifies a sequence name, a float and a message, deletes a Max event or events specified by the message at the time specified by the float for the sequence name specified by the symbol. An additional end time may also be specified. Here are some examples:

delete mysequence 5. : delete all the events at time 5 in mysequence.
delete mysequence 6.5 8. : delete all the events between time 6.5 and 8 in mysequence.
delete mysequence -1. 99. explosion : delete only the event explosion wherever it occurs.

dump

Arguments

sequence-number (int) [int]
Causes the contents of the current stored event sequence to be sent out the middle outlet. The word dump , followed by a number, outputs only the sequence designated by the number.

play

Arguments

playback-enable-flag (0 or 1) [int]
The word play , followed by 1, causes seq~ to begin Max event playback of the current sequence (set by the seqnum message) at the point of the loop specified by the current value of the signal input. play 0 turns off playback. By default, playback is off.

offset

Arguments

number-to-offset-sequence-numbering [int]
The word offset followed by a number will offset the numbering of sequences by the specified number.

overdub

Arguments

overdub-enable-flag (0 or 1) [int]
The word overdub , followed by 1, causes seq~ to begin Max event recording of the current sequence (set by the seqnum message) in "overdub" mode. Recording begins at the current point of the loop and wraps around at the point where the input signal reaches 1, continuing to record as the signal passes its original value. The message overdub 0 turns off overdub mode.

seq

Arguments

sequence (int or symbol) [int]
Performs the same function as seqnum .

seqnum

Arguments

sequence (int or symbol) [int]
The word seqnum , followed by a number or symbol, sets the current Max event sequence being recorded or played back.

read

Arguments

filename [symbol]
Reads a text file containing Max event sequences created using the seq~ object's write message into the memory of the. seq~ object. If no symbol argument appears after the word read , a standard open file dialog is opened showing available text files. The word read , followed by a symbol, reads the file whose filename corresponds to the symbol into the seq~ object's memory without opening the dialog box.

record

Arguments

playback-enable-flag (0 or 1) [int]
The word record , followed by 1, causes seq~ to begin recording events into the current sequence (set by the seqnum message) at the point of the loop specified by the current value of the signal input. record 0 turns off recording. Recording is off by default.

signal

An input signal whose output is between 0. and 1.0 (usually the output of a phasor~) is used to drive the event sequencer.

symbol

Arguments

input [symbol]
Same as anything .

write

Arguments

filename [symbol]
Saves the contents of all current Max event sequences into a text file. A standard file dialog is opened for naming the file. The word write , followed by a symbol, saves the file, using the symbol as the filename, in the same folder as the patch containing the seq~ object. If the patch has not yet been saved, the seq~ file is saved in the same folder as the Max application.

Output

any message

Out left outlet: When playback is enabled with the play 1 message, the seq~ object outputs all events recorded at the time specified by the input signal.

list

Out right outlet: The dump message will cause the seq~ object to output the contents of a specified sequence to be output in the form of a list consisting of an int which specifies the sequence number, a float which specifies the signal value associated with that point in time, and the int, float, symbol or list to be output at that time.

See Also

Name Description
phasor~ Generate sawtooth signals
techno~ Signal-driven step sequencer