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#Sonic Pi Conductor by Robin Newman written for Sonic-Pi 2.1 onwards December 2014
#consists of two functions, slave and conductor, which make extensive use of the :cue and :sync system in Sonic Pi
#The program works becuase these commands can work between workspaces as well as within a single workspace.

#Instructions for use:

#1      In each workspace that you want to control, put as the FIRST LINE slave(ws number)
#       eg in workspace two put slave(2), workspace 5 put slave(5) etc.

#2      Put as the LAST LINE of each workspace to be conducted the command   cue :wsN    where N is the workspace number:

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#Bach Gigue in G minor from English Suite no 3 Coded by Robion Newman December 2014
#Synth version
set_sched_ahead_time! 3
use_debug false
s=0 #to set global scope
define :setbpm do |n| #set bpm equivalent
  s = (1.0 / 8) *(60.0/n.to_f)
end
use_synth :pulse
setbpm(180)

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#Bach Gigue in G Minor from English Suite 3 (part 1). Coded by Robin Newman December 2014
#sample based version in two parts synced together. Start part 2 then part 1
set_sched_ahead_time! 3

#use_sample_pack '/Users/rbn/Desktop/samples/GrandPiano/' #select and adjust as necessary
use_sample_pack '/home/pi/samples/GrandPiano'
#select loud (f) or soft (p) piano samples
ps="piano_f_"
#ps="piano_p_"
rt=2**(1.0/12)  #12th root of 2

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#BachGigueInGMinor (part 2) coded by Robin Newman, December 2014
#sample based version. (two parts synced together: staret this part first, then part 1)
sync :part2
use_sample_pack '/Users/rbn/Desktop/samples/GrandPiano/' #select and adjust as necessary
#use_sample_pack '/home/pi/samples/GrandPiano'

#select loud (f) or soft (p) piano samples
#ps="piano_f_"
ps="piano_p_"

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Sonic Pi 2.2 at Bett 2015

This is a summary of a talk given at Bett 2015 on Sonic Pi

I started by playing excerpts from two programs, Scott Joplin Maple Leaf Rag, and a Percussion Generator, to illustrate different things Sonic Pi can do, and gave a brief description of Sonic Pi and the user interface, similar to section 1.2 of the built in tutorial, which is accessed by clicking the Help button.

I also showed how one of the example programs "Idm Breakout" could be copied and played. Then I used the following program sections to develop a code to play the round Frere Jaques

##Making sounds

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#Frere Jaques using sliding notes
#This piece explores the use of functions generating named args for synths
#by Robin Newman December 12th 2014

#The program explores the use of sliding notes in chord scales and a rendition of Frere Jaques

use_debug false
s=0 #set s here with dummy value so that its scope is global
define :setbpm do |n| #set bpm equivalent
  s = (1.0 / 8) *(60.0/n.to_f)

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#sample based :Ambi-drone voice for Sonic Pi 2.1 over 4 octaves, plays Frere Jaques with drone base, by Robin Newman 5th Dec 2014
set_volume! 2
load_sample :ambi_drone
#sample based voices for :ambi_drone sample over 4 octave range from :c2 to :c6 by Robin Newman December 2014
#use pl(inst,n,d=0.2,pan=0,v=0.8) to play a note where n is note symbol,d duration,v volume
#or plarray(inst,nt,dur,sh=0,vol=0.8,pan=0) to play lists of note symbols and durations
#where inst is samplename,nt and dur are note symbol and duration arrays,sh transpose shift
use_debug false
rm = 2**(1.0/12) #rate multiplier between adjacent semitones (twelth root of 2)
inst = :ambi_drone #to define scope of inst variable set up here. Used as a parameter later

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#Live coding example by Robin Newman, December 2014
#uncomment then run each of the five commented lines in the program below
#to add one by one the samples and play commands
#try altering the chords or synths chosen for further effects
#remember to press run to bring changes into effect


set_sched_ahead_time! 0.5
live_loop :d, auto_cue: false do
  #sample :bd_zome

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#Scott Joplin Maple Leaf Rag coded by Robin Newman September 2014
#music score http://conquest.imslp.info/files/imglnks/usimg/9/98/IMSLP270188-PMLP06700-Maple_Leaf_Rag.pdf
#on a Raspberry Pi turn OFF Print output in Sonic Pi Prefs
set_sched_ahead_time! 2
use_debug false
s = 1.0 / 12 #makes a crotchet (8) last 0.53s or about 112 crotchets/minute
with_fx :reverb,room: 0.6 do
  #first set up synth and note lengths
  #not all note lengths used in this piece
  use_synth :pretty_bell