nslider Reference

Output numbers from a notation display



nslider or "Note Slider" is a musical-notation-based integer value slider.


A useful tool to monitor an incoming MIDI stream




bgcolor [4 floats]

Sets the background color for the object in RGBA format.

clefs [int] (default: 1)

Display Clefs

fgcolor [4 floats]

Sets the foreground color for the object in RGBA format.

mode [int] (default: 0)

Sets the nslider object's mode of operation.
Monophonic: (the default) Only one note can be selected and displayed at one time.
Polyphonic: The kslider object keeps track of note-ons and note-offs, so it mirrors which notes are currently held down on your MIDI keyboard. A key is “turned off” by sending the kslider object a key on message with a velocity of 0. Possible values:

0 = 'Monophonic'
1 = 'Polyphonic'

parameter_enable [int]

Enables use of this object with Max for Live Parameters and allows for setting initial parameter values in the Max environment.

parameter_mappable [int] (default: 1)

When parameter_mappable is enabled, the object will be available for mapping to keyboard or MIDI input using the Max Mappings feature.

staffs [int] (default: 1)

Display Staffs

style [symbol] (default: )7.0.0

Sets the style to be applied to the object. Styles can be set using the Format palette.

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:

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:


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.

jspainterfile [symbol]

JS Painter File

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

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

position [2 floats]


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]


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]


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 [4 floats]

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

textjustification [int]

Sets the justification for the object's text. 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.

Parameter Attributes



Sets the order of recall of this parameter. Lower numbers are recalled first. The order of recall of parameters with the same order number is undefined.

Parameter Mode Enable


Parameter Mode Enable (not available from Parameters window)

Link to Scripting Name


When checked, the Scripting Name is linked to the Long Name attribute.

Long Name


The long name of the parameter. This name must be unique per patcher hierarchy.

Short Name


Sets the short name for the object's visual display. The maximum length varies according to letter width, but is generally in a range of 5 to 7 characters.



Specifies the data type. The data types used in Max for Live are:

Enum (enumerated list)

Note: By convention, the Live application uses floating point numbers for its calculations; the native integer representation is limited to 256 values, with a default range of 0-255 (similar to the char data type used in Jitter). When working with Live UI objects whose integer values will exceed this range, the Type attribute should be set to Float, and the Unit Style attribute should be set to Int.



When used with an integer or floating point data type, this field is used to specify the minimum and maximum values of the parameter.
When used with an enumerated list (Enum) data type, this field contains a space-delimited list of the enumerated values (if list items contain a space or special characters, the name should be enclosed in double quotes).

Clip Modulation Mode


Sets the Clip Modulation Mode used by the Live application. The modulation modes are:


Clip Modulation Range


This parameter is only used with the Absolute modulation mode. It specifies defines the range of values used.

Initial Enable


When checked (set to 1), the UI object can store an initialization value. The value is set using the Initial attribute (see below).



Sets the initial value to be stored and used when the Initial Enable attribute is checked.

Unit Style


Sets the unit style to be used when displaying values. The unit style values are: Int: displays integer values
Float: displays floating point values
Time: displays time values in milliseconds (ms)
Hertz: displays frequency values (Hz/kHz).
deciBel: displays loudness (dB)
%: Percentage
Pan: displays Left and Right values
Semitones: displays steps (st)
MIDI: displays pitch corresponding to the MIDI note number
Custom: displays custom data type
Native: defaults to floating point values

Custom Units


Sets the units to be used with the 'Custom' unit style (see "Unit Style", above). Custom unit strings may be simple symbols (e.g. "Harmonic(s)"), in which case the parameter's value will be displayed in its 'Native' display mode, followed by the symbol (e.g. "12 Harmonic(s)" for an Int-typed parameter or "12.54 Harmonic(s)" for a Float-typed parameter). For additional control over the numerical component displayed, a sprintf-style string may be used (e.g. "%0.2f Bogon(s)", which would display a value such as ".87 Bogons").



When set to a value other than 1., the parameter's input and output values will be exponentially scaled according to the factor entered in this column.



The number of steps available between the minimum and maximum values of a parameter. For instance, if the parameter has a range from 0.-64., with Steps set to 4, the user can only set the parameter to 0, 21.33, 42.66 and 64.

Parameter Visibility


For automatable parameters (Int, Float, Enum), 'Stored Only' disables automation, although parameter values are stored in presets. 'Hidden' causes the parameter's value to be ignored when storing and recalling data. Non-automatable parameters (Blob) are 'Stored Only' by default, and can be set to 'Hidden', if desired.

Update Limit (ms)


Speed limits values triggered by automation.

Defer Automation Output


Defers values triggered by automation.



In left inlet: Sends out the pitch and velocity values currently stored in nslider.



input [int]
The number received in the inlet is displayed graphically by nslider if it falls within its displayed range. The current velocity value (from 1 to 127) that nslider holds is sent out its right outlet, followed by the received number out the left outlet.



velocity [int]
In right inlet: The number received in the right inlet sets the output key velocity without triggering output.



input [float]
In left inlet: Converted to int.



velocity [float]
In right inlet: Converted to int.



value-pair [list]
A list of two numbers sent to the left inlet of nslider can be used to set and output the note and velocity values.



notenames [list]
Notes can also be added using the musical note name and octave, i.e., F#3. This is especially useful for forcing display of accidentals (# or b). For example, a value of 59 and the message Cb4 both produce the same note, but the number will display a B note while the message displays a C-flat.



value-pairs [list]
In left inlet: The word chord, followed by a list of MIDI note name and velocity pairs, can be used to play chords on the nslider in polyphonic mode (set by the mode 1 message). The chord message sends note-offs for currently held notes, followed by note-on commands for the specified note and velocity pairs. When the nslider object's state is saved by a preset object in polyphonic mode, the preset object will store chord messages.


In left inlet: The clear message will clear any notes on the staves, but will not trigger any output.


In left inlet: When the nslider object is in polyphonic mode (set by the mode 1 message), the flush message will send note-offs to currently held notes and clear the nslider object's display.


nslider also sends out numbers when you click or drag on it with the mouse. The velocity value is determined by the previous value received in the right inlet.
If the nslider object is in polyphonic mode, you need to click on a note twice: once to send a note-on and draws the note, and once again to send a note-off and erase the note.



value-pair [list]
In left inlet: The word set, followed by a number, changes the value displayed by nslider, without triggering output. If the set message is followed by two numbers, both the note and velocity values are set, without causing output.



nslider sends its current velocity value out its right outlet, followed by the (displayable) pitch value out its left outlet, when a number is received in its inlet or you click or drag on the object. In polyphonic mode, it will send a note value with a velocity of zero when a note is removed from the staves.

See Also

Name Description
kslider Output numbers from an onscreen keyboard
makenote Generate a note-on/note-off pair
notein Receive MIDI note messages
noteout Transmit MIDI note messages
pictslider Picture-based slider control
rslider Display or change a range of numbers
slider Move a slider to output values