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tempo Reference

Output numbers at a metronomic tempo



Produces metronomic output controllable in beats per minute, and with specifiable whole-note divisions.


The tempo (60) defines the speed of a quarter note, division defines the pulse to be sent out


tempo [int or float]


The first argument sets an initial tempo, from 5 to 300 beats per minute. If there is no argument, the initial tempo is 120 beats per minute. The second argument is the beat multiplier and is set to 1 by default. The third argument sets an initial rhythmic value of the output, from a whole note (1) to a 64th note triplet (96). If the argument is not present, the initial value is 16.


Common Box Attributes



In left inlet: Starts the tempo object's metronome process, or restarts it if tempo is already on.



input [int]
Converted to float.



input [float]
In left inlet: If the number is not 0, it has the same effect as bang. If the number is 0, it has the same effect as stop.

In 2nd inlet: The number is stored as the tempo, in beats per minute (quarter notes per minute).

In 3rd inlet: The number is a beat multiplier, which can lengthen the amount of time taken for one beat. It slows the tempo down by a factor. For example, a multiplier of 2 will make tempo send out its output half as fast.

In right inlet: The number is the rhythmic value sent out by tempo, specified as a fraction of a whole note. For example, the number 8 causes tempo to output eighth notes, relative to the specified (quarter note) tempo. The numbers sent out the outlet cycle continuously between 0 and the number 1 less than the rhythmic value. The divisions of a whole note must be between 1 and 96.



name [symbol]
The word clock, followed by the name of an existing setclock object, sets the tempo object to be controlled by that setclock object rather than by Max’s internal millisecond clock. The word clock by itself sets the tempo object back to using Max’s regular millisecond clock.


In left inlet: Stops tempo.



tempo [list]
In left inlet: The word tempo, followed by a float, sets the current tempo to the number.



When tempo is started it outputs numbers in a continuous cycle from 0 to the number 1 less than the specified rhythmic value. The speed at which the numbers are sent out is determined by the tempo (quarter note beats per minute) and the rhythmic value of the output (fraction of a whole note).

See Also

Name Description
Timing and Sequencing Events Timing and Sequencing Events
Max MIDI Tutorial 4: MIDI Basic Sequencing Max MIDI Tutorial 4: MIDI Basic Sequencing