checkouts.rb

# plays one note for each day in a year of checkout data from the library
# recording at https://soundcloud.com/laurasaurus5/checkouts

require 'csv'

data = CSV.parse(File.read("/Users/lwrubel/projects/datasonify/gwtransactcounts.csv"), {:headers => true, :header_converters => :symbol})
# 7/1/2014 is a Tuesday and day 182 of the year
dailycount = 2 
day = 182

data.each do |line|
  checkouts = line[:count].to_f
  next unless checkouts > 0
  
  use_synth :piano

  # chunk counts and assign a pitch
  # data values are roughly 0-1000
  rough_num = (checkouts/5).round(-1)
  pitches = {0=>:C4, 10=>:D4, 20=>:E4, 30=>:F4, 40=>:G4, 50=>:A4, 60 =>:B4, 70=>:C5, 80=>:D5, 90=>:E5, 100=>:F5, 110=>:G5, 120=>:A5, 
130=>:B5, 140=>:C6, 150=>:D6, 160=>:E6, 170=>:F6, 180=>:G6, 190=>:A6}
  new_pitch = pitches[rough_num]

  # set higher amp and play drum at the start of each week
  if dailycount % 7 == 0
    beat = 1.2
    week_sample = :bd_zome
  else beat = 0.5
  end

  # extra drums for semester dates
  if (day >= 237 and day <=353) 
    sem_sample = :drum_bass_soft
  elsif (day >= 377 and day <=497)
    sem_sample = :drum_bass_soft
  end  

  # make noise!
  play new_pitch, amp: beat
  sample sem_sample, amp: 0.25
  sample week_sample, amp: 0.25
  sleep 0.15
 
  dailycount += 1
  day += 1
end