I thought it would be good to have a 'function of the week', where we pick a function to look at in detail, and how it fits with other functions. If you'd like to understand a Tidal function more, or share your experiments with it, then please add your nomination below!
FOTW#2 - swingBy
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spread or weave (and variations) would be nice
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Snowball
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ur -- though I do see that it's a topic in the coming weeks.
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would also love to understand snowball better
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:t zoom
cool, this thread brought me to the list https://tidalcycles.org/index.php/All_the_functions
an example from there
d1 $ every 4 (zoom (0.25, 0.75)) $ sound "bd*2 hh*3 [sn bd]*2 drum"
and a flip by me 
d1 $ every 7 (zoom (0.15, 0.95)) $ loopAt 2 $ chop 3 $ sound "break:18"
could even add something like this...
d2 $ s "808cy:3*4"
# gain (range 0.6 0.8 rand)
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wchoose [("lindenmayer", 0.3), ("runMarkov", 42)]
(I think I stated the preference quite clearly.)
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i also vote for snowball !
Mask 
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Bring back FOTW pls!!
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Ok will have a think! Any new nominations?
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How about while? There was some talk about it recently, and it seems versatile enough for a closer look
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Possibilities of when do peak my interest.
both inside and outside are not obvious, but are so powerful
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Did we not cover while in the course around binary patterns? If not that's a definite. inside/outside also excellent suggestions. I might flip a coin. It might have to be after the 25th now but will be before the new year! We should also do a general q+a session
Oh and I can't remember what when does but will look into that too!
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When offers a conditional possibilities:
Only when the given test function returns True the given pattern transformation is applied. The test function will be called with the current cycle as a number.
d1 $ when ((elem '4').show) (striate 4) $ sound "hh hc"
It would be interesting to learn what conditions could be inserted instead of ((elem '4').show)
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