Rerezzed

Version 2.7 - 'Rerezzed'

Thursday 10th September, 2015

This release brings a substantial change to the random number
generator. This has the unfortunate side effect of breaking backwards
compatibility. If you have been using rand, choose, shuffle and
friends to create predictable patterns for your riffs, your code will
produce different results in this release. Please let me apologise and
say it's for a good cause. So what is this good cause? Well, you can
now jump backwards and forwards through the random stream giving you way
more creative control than before! The random stream is now also unified
with the random stream on the synthesis server allowing you to sync
behaviour between synths and code. Exciting times.

The sampler has also been super charged. We can now easily change the
rate via MIDI note intervals with rpitch: and stretch the sample whilst
preserving pitch via pitch_stretch: (although with variable results
;-)).

Finally you can now control the global mixer with set_mixer_control!
for those full filter sweeps over the entire sound...

Have fun and happy live coding!

Breaking Changes

• Complete rewrite of random number system. This means if you've been
  combining calls to use_random_seed with randomisation to create
  predictable melodies/rhythms/timbral manipulations you will
  unfortunately get different results in v2.7. This change is to
  synchronise both the Ruby rand stream with the one in SuperCollider as
  well as enabling the reversal of calls to rand via rand_back.
• sync now causes the BPM to be inherited from the thread calling the
  matching cue. This may be disabled with the new bpm_sync: opt.
• rrand and rand now return 0 if called with 0.
• invert_chord now handles negative inversions in a more musically
  appropriate manner..

New Fns

• ratio_to_pitch which provides the inverse of pitch_to_ratio
• midi_notes - returns a ring of numbers (mapping the source
  ring/array through the fn note).
• rand_back - reverse the random stream and 'undo' calls to rand
• rand_skip - skip forward through the random stream.
• rand_reset- reset the random stream to the last seed.

GUI

• It is now possible to toggle the commenting of whole selections or
  individual lines with the shortcut M-/.
• Added Icelandic translation.

Synths & FX

• All synths learned the decay_level opt to allow the sustain phase to
  shift between two distinct values. The default value for decay_level
  is to mirror sustain_level: thus preserving current behaviour.
• play and synth have now learned the pitch: opt to match
  sample. This just increments or decrements the final note.
• sample now correctly validates opts.
• sample learned the pitch_stretch: opt which combines rate:
  modification (similar to beat_stretch: with pitch:. Attempts to
  maintain the pitch whilst simultaneously changing the rate. The
  underlying implementation is very basic and can easily destroy the
  sound.
• sample learned the rpitch: opt for simple rate pitch
  modulation. This modifies the rate to match the specified number of
  MIDI notes relative from the current pitch. For example, a rpitch:
  of 12 would double the rate.
• The unit of the FX :echo's decay: opt is now beats and the value
  is scaled with the BPM.

Examples

• Most examples have been tweaked to sound good with the new random
  generator.
• Tilburg has been replaced with Tilburg 2. Play it and get your
  Algorave on!

Improvements

• Auto-align code on Run.
• live_loop learned the seed: opt which will set the new thread with
  the specified seed prior to initial run.
• Add check to ensure BPM is a positive value.
• density has now been taught to handle values between 0 and 1 which
  will now stretch time for the specified block.
• Errors now no longer print out crazy print version of context object
  i.e. #SonicPiSpiderUser1:0x007fc82e1f79a0
• Both in_thread and live_loop have now learned the delay: opt
  which will delay the initial execution by the specified number of
  beats.
• Buffer and thread name are now printed on error.
• sample_duration now understands all the opts that you can pass to sample
• It is now possible to do basic arithmetic on symbols representing
  rests: :r + 3 returns :r (a rest plus any MIDI note shift is still
  a rest).

Bug Fixes

• Fixed crash when synth args were specified as Rationals.
• note_info now correctly handles octaves.
• Fix windows paste shortcut C-v.
• Teach invert_chord how to properly handle out of range index ranges.

Releases

Mac
Link	Sonic-Pi-for-Mac-v2.7.0.dmg
Size	93M
MD5	9bf75c57995c4d91a13cbeb6dbe5f4b8
SHA256	8a02d029273a3906b4761e2d36d64d34f0c4aff4fed4253658f0dc1c0f219ff9
Raspberry Pi (Jessie)
Link	Sonic-Pi-for-RPi-Jessie-v2.7.0.tgz
Size	65M
MD5	5b69a9fa9dc572e5b624ddc922ea30a6
SHA256	742a66407b2150ef648e577f24c4790431cc7e12e373aa9fbf892253b22a536b
Windows
Link	Sonic-Pi-for-Win-v2.7.0.msi
Size	71M
MD5	51c2626ce2dd886bebc270416396312d
SHA256	8d3cd925f73d2a6159a757ea9c0d21697a16b3a921ed70b377317fae7e43e9f2