Tidal Build Status

Language for live coding of pattern

For documentation, mailing list and more info see here: https://tidalcycles.org/

(c) Alex McLean and contributors, 2018

Distributed under the terms of the GNU Public license version 3 (or later).


TidalCycles log of changes

0.9.10 (and earlier missing versions from this log)

  • arpg, a function to arpeggiate
  • within’, an alternate within with a different approach to time, following discussion here https://github.com/tidalcycles/Tidal/issues/313
  • sine et al are now generalised so can be used as double or rational patterns
  • New Sound.Tidal.Simple module with a range of simple transformations (faster, slower, higher, lower, mute, etc)
  • slice upgraded to take a pattern of slice indexes
  • espgrid support
  • lindenmayerI
  • sew function, for binary switching between two patterns
  • somecycles alias for someCycles
  • ply function, for repeating each event in a pattern a given number of times within their original timespan
  • patternify juxBy, e, e’, einv, efull, eoff



  • The note pattern parameter is no longer an alias for midinote, but an independent parameter for supercollider to handle (in a manner similar to up)



  • Added chord for chord patterns and scaleP for scale patterns
  • The n pattern parameter is now floating point



  • Added hurry which both speeds up the sound and the pattern by the given amount.
  • Added stripe which repeats a pattern a given number of times per cycle, with random but contiguous durations.
  • Added continuous function cosine
  • Turned more pattern transformation parameters into patterns - spread’, striateX, every’, inside, outside, swing
  • Added experimental datatype for Xenakis sieves
  • Correctly parse negative rationals
  • Added breakUp that finds events that share the same timespan, and spreads them out during that timespan, so for example (breakUp “[bd,sn]”) gets turned into the “bd sn”
  • Added fill which ‘fills in’ gaps in one pattern with events from another.



  • Swapped - for .. in ranges as quick fix for issue with parsing negative numbers
  • Removed overloaded list thingie for now, unsure whether it’s worth the dependency



  • The sequence parser can now expand ranges, e.g. "0-3 4-2" is equivalent to "[0 1 2 3] [4 3 2]"
  • Sequences can now be described using list syntax, for example sound ["bd", "sn"] is equivalent to sound "bd sn". They aren’t lists though, so you can’t for example do sound (["bd", "sn"] ++ ["arpy", "cp"]) – but can do sound (append ["bd", "sn"] ["arpy", "cp"])
  • New function linger, e.g. linger (1/4) will only play the first quarter of the given pattern, four times to fill the cycle.
  • discretise now takes time value as its first parameter, not a pattern of time, which was causing problems and needs some careful thought.
  • a rel alias for the release parameter, to match the att alias for attack
  • _fast alias for _density
  • The start of automatic testing for a holy bug-free future


  • Fixed bug that was causing events to double up or get lost, e.g. where rev was combined with certain other functions.
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