Time Modifiers

The following functions modify a pattern temporal structure in some way. Some of these have equivalent operators in the Mini Notation:

functionmini
"x".slow(2)"x/2"
"x".fast(2)"x*2"
"x".euclid(3,8)"x(3,8)"
"x".euclidRot(3,8,1)"x(3,8,1)"

slow

Synonyms: sparsity

Slow down a pattern over the given number of cycles. Like the "/" operator in mini notation.

  • factor (number|Pattern): slow down factor
s("<bd sd> hh").slow(2) // s("[<bd sd> hh]/2")

fast

Synonyms: density

Speed up a pattern by the given factor. Used by "*" in mini notation.

  • factor (number|Pattern): speed up factor
s("<bd sd> hh").fast(2) // s("[<bd sd> hh]*2")

early

Nudge a pattern to start earlier in time. Equivalent of Tidal's <~ operator

  • cycles (number|Pattern): number of cycles to nudge left
"bd ~".stack("hh ~".early(.1)).s()

late

Nudge a pattern to start later in time. Equivalent of Tidal's ~> operator

  • cycles (number|Pattern): number of cycles to nudge right
"bd ~".stack("hh ~".late(.1)).s()

legato

Multiplies the hap duration with the given factor.

    note("c3 eb3 g3 c4").legato("<.25 .5 1 2>")

    euclid

    Changes the structure of the pattern to form an euclidean rhythm. Euclidian rhythms are rhythms obtained using the greatest common divisor of two numbers. They were described in 2004 by Godfried Toussaint, a canadian computer scientist. Euclidian rhythms are really useful for computer/algorithmic music because they can describe a large number of rhythms with a couple of numbers.

    • pulses (number): the number of onsets / beats
    • steps (number): the number of steps to fill
    // The Cuban tresillo pattern.
note("c3").euclid(3,8)

    euclidRot

    Like euclid, but has an additional parameter for 'rotating' the resulting sequence.

    • pulses (number): the number of onsets / beats
    • steps (number): the number of steps to fill
    • rotation (number): offset in steps
    // A Samba rhythm necklace from Brazil
note("c3").euclidRot(3,16,14)

    euclidLegato

    Similar to euclid, but each pulse is held until the next pulse, so there will be no gaps.

      n("g2").decay(.1).sustain(.3).euclidLegato(3,8)

      rev

      Reverse all haps in a pattern

        note("c3 d3 e3 g3").rev()

        palindrome

        Applies rev to a pattern every other cycle, so that the pattern alternates between forwards and backwards.

          note("c d e g").palindrome()

          iter

          Divides a pattern into a given number of subdivisions, plays the subdivisions in order, but increments the starting subdivision each cycle. The pattern wraps to the first subdivision after the last subdivision is played.

            note("0 1 2 3".scale('A minor')).iter(4)

            iterBack

            Synonyms: iterback

            Like iter, but plays the subdivisions in reverse order. Known as iter' in tidalcycles

              note("0 1 2 3".scale('A minor')).iterBack(4)

              ply

              The ply function repeats each event the given number of times.

                s("bd ~ sd cp").ply("<1 2 3>")

                segment

                Samples the pattern at a rate of n events per cycle. Useful for turning a continuous pattern into a discrete one.

                • segments (number): number of segments per cycle
                note(saw.range(0,12).segment(24)).add(40)

                compress

                Compress each cycle into the given timespan, leaving a gap

                  cat(
  s("bd sd").compress(.25,.75),
  s("~ bd sd ~")
)

                  zoom

                  Plays a portion of a pattern, specified by the beginning and end of a time span. The new resulting pattern is played over the time period of the original pattern:

                    s("bd*2 hh*3 [sd bd]*2 perc").zoom(0.25, 0.75)
// s("hh*3 [sd bd]*2") // equivalent

                    linger

                    Selects the given fraction of the pattern and repeats that part to fill the remainder of the cycle.

                    • fraction (number): fraction to select
                    s("lt ht mt cp, [hh oh]*2").linger("<1 .5 .25 .125>")

                    fastGap

                    Synonyms: fastgap

                    speeds up a pattern like fast, but rather than it playing multiple times as fast would it instead leaves a gap in the remaining space of the cycle. For example, the following will play the sound pattern "bd sn" only once but compressed into the first half of the cycle, i.e. twice as fast.

                      s("bd sd").fastGap(2)

                      inside

                      Carries out an operation 'inside' a cycle.

                        "0 1 2 3 4 3 2 1".inside(4, rev).scale('C major').note()
// "0 1 2 3 4 3 2 1".slow(4).rev().fast(4).scale('C major').note()

                        outside

                        Carries out an operation 'outside' a cycle.

                          "<[0 1] 2 [3 4] 5>".outside(4, rev).scale('C major').note()
// "<[0 1] 2 [3 4] 5>".fast(4).rev().slow(4).scale('C major').note()

                          cpm

                          Plays the pattern at the given cycles per minute.

                            s("<bd sd>,hh*2").cpm(90) // = 90 bpm

                            ribbon

                            Loops the pattern inside at offset for cycles.

                            • offset (number): start point of loop in cycles
                            • cycles (number): loop length in cycles
                            // Looping a portion of randomness
note(irand(8).segment(4).scale('C3 minor')).ribbon(1337, 2)

                            Apart from modifying time, there are ways to Control Parameters.