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@acharlieh
Last active November 1, 2018 03:22
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SonicPi Playground
def bars(k)
n = chord(k,:sus4)
([n[0]]*4 + [n[1]]*2 + [n[0]]*2 + [n[2],n[1]] + [n[0]]*2)
end
use_bpm 200
use_synth :piano
use_debug false
set :key, :C2
mystop = false
live_loop :set do
stop if get[:stop]
bars(get[:key]).each_with_index do |key,i|
case i
when ->(i) { i%2 == 0 }
rn = chord(key,:dom7)
time = [1,1,1,2.0/3.0,1.0/3.0]
notes = [rn[0],rn[1],rn[2],rn[3]-1,rn[2]]
when ->(i) { i%2 == 1 }
rn = chord(key,:dom7).reverse
time = [1,1,2.0/3.0,1.0/3.0,1]
notes = [rn[0],rn[1]+2,rn[2]+3,rn[2]+3,rn[3]+4]
end
notes.zip(time).each_with_index do |(n,t),ni|
play n, sustain: t, amp: 2, pan: -0.75
sleep t
end
end
end
beatoptions = []
beatoptions += [ [2.0/3, 1.0/3] ] * 2
beatoptions += [ [1.0/3, 2.0/3] ] * 0
beatoptions += [ [1.0/3] * 3 ] * 0
beatoptions += [ [1] ] * 5
live_loop :improv, auto_cue: false, sync: "/live_loop/set" do
stop if get[:stop]
bars(get[:key]).each_with_index do |key,i|
nbeats = 4
measure = []
while nbeats > 0
n = (1..nbeats).to_a.sample
if (n == 1)
measure += beatoptions.sample
else
measure += [ n ]
end
nbeats -= n
end
rn = scale(key+12,:blues_major, num_octives: 2)
notes = measure.size.times.collect { rn.sample }
notes.zip(measure.shuffle).each do |(note,time)|
play note, sustain: time, amp: 2, pan: 0.75
sleep time
end
end
end
set :stop, mystop
stop unless mystop
sync "/live_loop/set"
key = bars(get[:key]).first
rn = scale(key,:blues_minor).reverse
play_pattern_timed rn.take(2), [1,2], amp: 2, pan: 0.75
play_pattern_timed rn.drop(2).take(2), [1,2], amp: 2, pan: -0.75
rn.drop(4).each do |note|
play note, sustain: 1, amp: 2, pan: 0.75
play note, sustain: 1, amp: 2, pan: -0.75
sleep 1
end
play key, sustain: 2, amp: 2, pan: 0.75
play key, sustain: 2, amp: 2, pan: -0.75
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